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BOSTON MARATHON 2026

David Olson

Bib: 10273•M

NH

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0:00
0:00
/ mi
Masters
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Overall
#0 / 29021
Top 24%
Gender (Male)
#0 / 16340
Top 37%
Masters (Masters Men)
#0 / 10617
Top 23%
Age Group (M40-44)
#0 / 2198
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
21:37
3.11 mi
Rank: #8201
Start → 5K
21:37 | 6:58/mi
10K
42:59
6.21 mi
Rank: #7958 (+243)
5K → 10K
21:22 | 6:53/mi
15K
1:04:37
9.32 mi
Rank: #8066 (-108)
10K → 15K
21:38 | 6:58/mi
20K
1:26:22
12.43 mi
Rank: #8005 (+61)
15K → 20K
21:45 | 7:01/mi
HALF
1:31:04
13.11 mi
Rank: #7985 (+20)
20K → HALF
4:42 | 6:54/mi
25K
1:48:03
15.53 mi
Rank: #7829 (+156)
HALF → 25K
16:59 | 7:01/mi
30K
2:09:53
18.64 mi
Rank: #7472 (+357)
25K → 30K
21:50 | 7:02/mi
20M
2:19:24
20.00 mi
Rank: #7305 (+167)
30K → 20M
9:31 | 7:01/mi
21M
2:26:28
21.00 mi
Rank: #7039 (+266)
20M → 21M
7:04 | 7:04/mi
35K
2:31:29
21.75 mi
Rank: #6952 (+87)
21M → 35K
5:01 | 6:43/mi
23M
2:40:23
23.00 mi
Rank: #6845 (+107)
35K → 23M
8:54 | 7:07/mi
24M
2:47:26
24.00 mi
Rank: #6783 (+62)
23M → 24M
7:03 | 7:03/mi
40K
2:53:31
24.85 mi
Rank: #6714 (+69)
24M → 40K
6:05 | 7:07/mi
25.2M
2:57:00
25.20 mi
Rank: #6913 (-199)
40K → 25.2M
3:29 | 10:07/mi
FINISH
3:04:48
26.22 mi
Rank: #7073 (-160)
25.2M → FINISH
7:48 | 7:40/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:31:04
Pace6:57 /mi
2nd Half
Distance13.11 mi
Time1:33:44
Pace7:09 /mi
📊Positive Split: 2.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:38:3821:376:5821:37
6:58
-
10K
6.21 mi11:00:0042:596:5621:22
6:53
-0:05
15K
9.32 mi11:21:381:04:376:5621:38
6:58
+0:05
20K
12.43 mi11:43:231:26:226:5721:45
7:01
+0:03
HALF
13.11 mi11:48:051:31:046:574:42
6:54
-0:07
25K
15.53 mi12:05:041:48:036:5816:59
7:01
+0:07
30K
18.64 mi12:26:542:09:536:5921:50
7:02
+0:01
20M
20.00 mi12:36:252:19:246:599:31
7:01
-0:01
21M
21.00 mi12:43:292:26:286:597:04
7:04
+0:03
35K
21.75 mi12:48:302:31:296:585:01
6:43
-0:21
23M
23.00 mi12:57:242:40:236:598:54
7:07
+0:24
24M
24.00 mi13:04:272:47:266:597:03
7:03
-0:04
40K
24.85 mi13:10:322:53:316:596:05
7:07
+0:04
25.2M
25.20 mi13:14:012:57:007:023:29
10:07
+3:00
FINISH
26.22 mi13:21:493:04:487:047:48
7:40
-2:27

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

6:43 /mi

Average Pace

7:03 /mi

Slowest Pace

10:07 /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

0:00

0% of race

Time at Steady Pace

2:53:31

94% of race

Time at Slower Pace

11:17

6% of race

Average Pace: 7:03 /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 mi10:38:3821:376:5821:37
6:58
#8201
10K
6.21 mi11:00:0042:596:5621:22
6:53
#7958
15K
9.32 mi11:21:381:04:376:5621:38
6:58
#8066
20K
12.43 mi11:43:231:26:226:5721:45
7:01
#8005
HALF
13.11 mi11:48:051:31:046:574:42
6:54
#7985
25K
15.53 mi12:05:041:48:036:5816:59
7:01
#7829
30K
18.64 mi12:26:542:09:536:5921:50
7:02
#7472
20M
20.00 mi12:36:252:19:246:599:31
7:01
#7305
21M
21.00 mi12:43:292:26:286:597:04
7:04
#7039
35K
21.75 mi12:48:302:31:296:585:01
6:43
#6952
23M
23.00 mi12:57:242:40:236:598:54
7:07
#6845
24M
24.00 mi13:04:272:47:266:597:03
7:03
#6783
40K
24.85 mi13:10:322:53:316:596:05
7:07
#6714
25.2M
25.20 mi13:14:012:57:007:023:29
10:07
#6913
FINISH
26.22 mi13:21:493:04:487:047:48
7:40
#7073
Faster pace
Steady pace
Slower pace

Rankings

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

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi8201703870388299(Top 29%)7054(Top 43%)7054(Top 321%)
10K6.21 mi3.10 mi7958+2436868+1706868+1707735(Top 27%)6721(Top 41%)6721(Top 306%)
15K9.32 mi3.11 mi8066-1086925-576925-578299(Top 29%)7054(Top 43%)7054(Top 321%)
20K12.43 mi3.11 mi8005+616873+526873+527855(Top 27%)6741(Top 41%)6741(Top 307%)
HALF13.11 mi0.68 mi7985+206866+76866+77849(Top 27%)6737(Top 41%)6737(Top 307%)
25K15.53 mi2.42 mi7829+1566755+1116755+1117411(Top 26%)6389(Top 39%)6389(Top 291%)
30K18.64 mi3.11 mi7472+3576486+2696486+2696118(Top 21%)5392(Top 33%)5392(Top 245%)
20M20.00 mi1.36 mi7305+1676369+1176369+1175607(Top 19%)4964(Top 30%)4964(Top 226%)
21M21.00 mi1.00 mi7039+2666156+2136156+2133862(Top 13%)3508(Top 21%)3508(Top 160%)
35K21.75 mi0.75 mi6952+876094+626094+625037(Top 17%)4464(Top 27%)4464(Top 203%)
23M23.00 mi1.25 mi6845+1076003+916003+916215(Top 21%)5251(Top 32%)5251(Top 239%)
24M24.00 mi1.00 mi6783+625940+635940+636806(Top 23%)5568(Top 34%)5568(Top 253%)
40K24.85 mi0.85 mi6714+695879+615879+616214(Top 21%)5133(Top 31%)5133(Top 234%)
25.2M25.20 mi0.35 mi6913-1995998-1195998-11919678(Top 68%)11676(Top 71%)11676(Top 531%)
FINISH26.22 mi1.02 mi7073-1606086-886086-8812580(Top 43%)8358(Top 51%)8358(Top 380%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 29%
×21
+97ft-345ft

Overall

8299

Males

7054

M40-44

7054

5K→10K

3.1 - 6.2 mi

Top 27%
×5
+79ft-138ft

Overall

7735

Males

6721

M40-44

6721

10K→15K

6.2 - 9.3 mi

Top 29%
×3
+67ft-78ft

Overall

8299

Males

7054

M40-44

7054

15K→20K

9.3 - 12.4 mi

Top 27%
×5
+106ft-86ft

Overall

7855

Males

6741

M40-44

6741

20K→HALF

12.4 - 13.1 mi

Top 27%
×2
+19ft-37ft

Overall

7849

Males

6737

M40-44

6737

HALF→25K

13.1 - 15.5 mi

Top 26%
×4
+66ft-88ft

Overall

7411

Males

6389

M40-44

6389

25K→30K

15.5 - 18.6 mi

Top 21%
×9
+181ft-148ft

Overall

6118

Males

5392

M40-44

5392

30K→20M

18.6 - 20.0 mi

Top 19%
×5
+64ft-50ft

Overall

5607

Males

4964

M40-44

4964

20M→21M

20.0 - 21.0 mi

Top 13%
×8
+106ft-24ft

Overall

3862

Males

3508

M40-44

3508

21M→35K

21.0 - 21.8 mi

Top 17%
×7
+17ft-86ft

Overall

5037

Males

4464

M40-44

4464

35K→23M

21.8 - 23.0 mi

Top 21%
×5
+23ft-63ft

Overall

6215

Males

5251

M40-44

5251

23M→24M

23.0 - 24.0 mi

Top 23%
×6
+12ft-82ft

Overall

6806

Males

5568

M40-44

5568

24M→40K

24.0 - 24.9 mi

Top 21%
×1
+6ft-20ft

Overall

6214

Males

5133

M40-44

5133

40K→25.2M

24.9 - 25.2 mi

Top 68%
×1
+13ft-16ft

Overall

19678

Males

11676

M40-44

11676

25.2M→FINISH

25.2 - 26.2 mi

Top 43%
×2
+22ft-21ft

Overall

12580

Males

8358

M40-44

8358

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
2062*
Passed By
927
Net Change
+1128
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#8201
5K → 10K340*97+243#8201#7958
10K → 15K96200-108#7958#8066
15K → 20K166105+61#8066#8005
20K → HALF3919+20#8005#7985
HALF → 25K19640+156#7985#7829
25K → 30K366*9+357#7829#7472
30K → 20M17710+167#7472#7305
20M → 21M268*2+266#7305#7039
21M → 35K936+87#7039#6952
35K → 23M13124+107#6952#6845
23M → 24M8119+62#6845#6783
24M → 40K8718+69#6783#6714
40K → 25.2M4200-199#6714#6913
25.2M → FINISH18178-160#6913#7073
TOTALS2062*927+1128

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

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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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing