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BOSTON MARATHON 2026

Ron Larsen

Bib: 24926•M

MN

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0:00
0:00
/ mi
Masters
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Overall
#0 / 29021
Gender (Male)
#0 / 16340
Masters (Masters Men)
#0 / 10617
Age Group (M70-74)
#0 / 281
Top 16%
Race Day Weather
51°/41°F
overcast clouds

Race Timeline and Course Information

Your journey through the course with elevation, pacing, and checkpoint details

⏱️ Race Timeline

Watch your race unfold from start to finish

Start
0:00:00
Race begins
5K
27:48
3.11 mi
Rank: #22389
Start → 5K
27:48 | 8:57/mi
10K
55:46
6.21 mi
Rank: #22616 (-227)
5K → 10K
27:58 | 9:01/mi
15K
1:23:24
9.32 mi
Rank: #22496 (+120)
10K → 15K
27:38 | 8:54/mi
20K
1:51:02
12.43 mi
Rank: #22190 (+306)
15K → 20K
27:38 | 8:54/mi
HALF
1:57:00
13.11 mi
Rank: #22154 (+36)
20K → HALF
5:58 | 8:46/mi
25K
2:18:37
15.53 mi
Rank: #21899 (+255)
HALF → 25K
21:37 | 8:55/mi
30K
2:46:06
18.64 mi
Rank: #21354 (+545)
25K → 30K
27:29 | 8:51/mi
20M
2:57:54
20.00 mi
Rank: #21052 (+302)
30K → 20M
11:48 | 8:42/mi
21M
3:07:10
21.00 mi
Rank: #20854 (+198)
20M → 21M
9:16 | 9:16/mi
35K
3:13:35
21.75 mi
Rank: #20751 (+103)
21M → 35K
6:25 | 8:35/mi
23M
3:24:28
23.00 mi
Rank: #20558 (+193)
35K → 23M
10:53 | 8:42/mi
24M
3:33:14
24.00 mi
Rank: #20462 (+96)
23M → 24M
8:46 | 8:46/mi
40K
3:40:41
24.85 mi
Rank: #20338 (+124)
24M → 40K
7:27 | 8:43/mi
25.2M
3:43:50
25.20 mi
Rank: #20269 (+69)
40K → 25.2M
3:09 | 9:09/mi
FINISH
3:52:23
26.22 mi
Rank: #20165 (+104)
25.2M → FINISH
8:33 | 8:24/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st Half
via HALF
Distance13.11 mi
Time1:57:00
Pace8:56 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:55:23
Pace8:49 /mi
📊Negative Split: 1.4% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:33:3227:488:5727:48
8:57
-
10K
6.21 mi12:01:3055:468:5927:58
9:01
+0:04
15K
9.32 mi12:29:081:23:248:5727:38
8:54
-0:07
20K
12.43 mi12:56:461:51:028:5727:38
8:54
0:00
HALF
13.11 mi13:02:441:57:008:565:58
8:46
-0:08
25K
15.53 mi13:24:212:18:378:5621:37
8:55
+0:09
30K
18.64 mi13:51:502:46:068:5527:29
8:51
-0:04
20M
20.00 mi14:03:382:57:548:5411:48
8:42
-0:09
21M
21.00 mi14:12:543:07:108:559:16
9:16
+0:34
35K
21.75 mi14:19:193:13:358:556:25
8:35
-0:41
23M
23.00 mi14:30:123:24:288:5410:53
8:42
+0:07
24M
24.00 mi14:38:583:33:148:548:46
8:46
+0:04
40K
24.85 mi14:46:253:40:418:537:27
8:43
-0:03
25.2M
25.20 mi14:49:343:43:508:533:09
9:09
+0:26
FINISH
26.22 mi14:58:073:52:238:538:33
8:24
-0:45

Checkpoint Splits Visualizations

Explore your race data through different visual perspectives. Scroll to discover each visualization.

📈Pace Line

Pace Progression

Track your pace changes throughout the race. Dot colors mark your quickest to easiest segments, relative to your own pace.

Fastest Pace

8:24 /mi

Average Pace

8:52 /mi

Slowest Pace

9:16 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Bar length shows time spent in each segment. Colors mark your faster to slower segments, relative to your own pace.

Time at Faster Pace

3:43:07

96% of race

Time at Steady Pace

9:16

4% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:52 /mi

Loading chart...
Faster pace (< avg)
Steady pace (≈ avg)
Slower pace (> avg)

🎨Heatmap

Pace Heatmap

Where you sped up and eased off relative to your own pace across the race. Colors are relative to your own range, not to other runners.

Loading...
0mi6.6mi13.1mi19.7mi26.2mi
Pace:
Faster
Steady
Slower

Click or hover over segments to see details

✨Sparklines

Checkpoint Splits with Pace Trends

Enhanced split table showing pace trends through mini sparkline visualizations.

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi11:33:3227:488:5727:48
8:57
#22389
10K
6.21 mi12:01:3055:468:5927:58
9:01
#22616
15K
9.32 mi12:29:081:23:248:5727:38
8:54
#22496
20K
12.43 mi12:56:461:51:028:5727:38
8:54
#22190
HALF
13.11 mi13:02:441:57:008:565:58
8:46
#22154
25K
15.53 mi13:24:212:18:378:5621:37
8:55
#21899
30K
18.64 mi13:51:502:46:068:5527:29
8:51
#21354
20M
20.00 mi14:03:382:57:548:5411:48
8:42
#21052
21M
21.00 mi14:12:543:07:108:559:16
9:16
#20854
35K
21.75 mi14:19:193:13:358:556:25
8:35
#20751
23M
23.00 mi14:30:123:24:288:5410:53
8:42
#20558
24M
24.00 mi14:38:583:33:148:548:46
8:46
#20462
40K
24.85 mi14:46:253:40:418:537:27
8:43
#20338
25.2M
25.20 mi14:49:343:43:508:533:09
9:09
#20269
FINISH
26.22 mi14:58:073:52:238:538:33
8:24
#20165
Faster pace
Steady pace
Slower pace

Rankings

Your position at each checkpoint and how you ranked in each segment

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM70-74Seg. OverallSeg. MalesSeg. M70-74
5K3.11 mi3.11 mi22389134191341922179(Top 76%)13363(Top 82%)13363(Top 4756%)
10K6.21 mi3.10 mi22616-22713552-13313552-13322829(Top 79%)13668(Top 84%)13668(Top 4864%)
15K9.32 mi3.11 mi22496+12013493+5913493+5922179(Top 76%)13363(Top 82%)13363(Top 4756%)
20K12.43 mi3.11 mi22190+30613344+14913344+14921426(Top 74%)12965(Top 79%)12965(Top 4614%)
HALF13.11 mi0.68 mi22154+3613325+1913325+1921537(Top 74%)13032(Top 80%)13032(Top 4638%)
25K15.53 mi2.42 mi21899+25513195+13013195+13020765(Top 72%)12631(Top 77%)12631(Top 4495%)
30K18.64 mi3.11 mi21354+54512915+28012915+28018810(Top 65%)11627(Top 71%)11627(Top 4138%)
20M20.00 mi1.36 mi21052+30212742+17312742+17317327(Top 60%)10899(Top 67%)10899(Top 3879%)
21M21.00 mi1.00 mi20854+19812641+10112641+10117482(Top 60%)10915(Top 67%)10915(Top 3884%)
35K21.75 mi0.75 mi20751+10312583+5812583+5818001(Top 62%)11059(Top 68%)11059(Top 3936%)
23M23.00 mi1.25 mi20558+19312484+9912484+9916873(Top 58%)10462(Top 64%)10462(Top 3723%)
24M24.00 mi1.00 mi20462+9612414+7012414+7018359(Top 63%)11126(Top 68%)11126(Top 3959%)
40K24.85 mi0.85 mi20338+12412342+7212342+7216917(Top 58%)10392(Top 64%)10392(Top 3698%)
25.2M25.20 mi0.35 mi20269+6912300+4212300+4215442(Top 53%)9738(Top 60%)9738(Top 3465%)
FINISH26.22 mi1.02 mi20165+10412230+7012230+7017555(Top 60%)10685(Top 65%)10685(Top 3802%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 76%
×21
+97ft-345ft

Overall

22179

Males

13363

M70-74

13363

5K→10K

3.1 - 6.2 mi

Top 79%
×5
+79ft-138ft

Overall

22829

Males

13668

M70-74

13668

10K→15K

6.2 - 9.3 mi

Top 76%
×3
+67ft-78ft

Overall

22179

Males

13363

M70-74

13363

15K→20K

9.3 - 12.4 mi

Top 74%
×5
+106ft-86ft

Overall

21426

Males

12965

M70-74

12965

20K→HALF

12.4 - 13.1 mi

Top 74%
×2
+19ft-37ft

Overall

21537

Males

13032

M70-74

13032

HALF→25K

13.1 - 15.5 mi

Top 72%
×4
+66ft-88ft

Overall

20765

Males

12631

M70-74

12631

25K→30K

15.5 - 18.6 mi

Top 65%
×9
+181ft-148ft

Overall

18810

Males

11627

M70-74

11627

30K→20M

18.6 - 20.0 mi

Top 60%
×5
+64ft-50ft

Overall

17327

Males

10899

M70-74

10899

20M→21M

20.0 - 21.0 mi

Top 60%
×8
+106ft-24ft

Overall

17482

Males

10915

M70-74

10915

21M→35K

21.0 - 21.8 mi

Top 62%
×7
+17ft-86ft

Overall

18001

Males

11059

M70-74

11059

35K→23M

21.8 - 23.0 mi

Top 58%
×5
+23ft-63ft

Overall

16873

Males

10462

M70-74

10462

23M→24M

23.0 - 24.0 mi

Top 63%
×6
+12ft-82ft

Overall

18359

Males

11126

M70-74

11126

24M→40K

24.0 - 24.9 mi

Top 58%
×1
+6ft-20ft

Overall

16917

Males

10392

M70-74

10392

40K→25.2M

24.9 - 25.2 mi

Top 53%
×1
+13ft-16ft

Overall

15442

Males

9738

M70-74

9738

25.2M→FINISH

25.2 - 26.2 mi

Top 60%
×2
+22ft-21ft

Overall

17555

Males

10685

M70-74

10685

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
2859
Passed By
635
Net Change
+2224
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#22389
5K → 10K172399-227#22389#22616
10K → 15K225105+120#22616#22496
15K → 20K34741+306#22496#22190
20K → HALF4711+36#22190#22154
HALF → 25K27419+255#22154#21899
25K → 30K5472+545#21899#21354
30K → 20M3020+302#21354#21052
20M → 21M2046+198#21052#20854
21M → 35K11310+103#20854#20751
35K → 23M2007+193#20751#20558
23M → 24M10812+96#20558#20462
24M → 40K1284+124#20462#20338
40K → 25.2M701+69#20338#20269
25.2M → FINISH12218+104#20269#20165
TOTALS2859635+2224
📊

Passing Analysis Visualizations

Explore your passing analysis through 5 different visualizations. Scroll to discover each one.

Time:
Category:

📈Position Graph

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🎨Heatmap Timeline

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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Qualifying & Age Grade

See how your performance stacks up against qualifying standards

OTQ

Olympic Trials Qualifying analysis available

Activity Data

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Export & Support

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Download your race performance as a GPX or TCX file to import into Strava, Garmin Connect, or other fitness apps.

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing