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BOSTON MARATHON 2026

Brian Kropf

Bib: 29350 •M •Age: N/A

CA

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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 (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
30:56
3.11 mi
Rank: #25824
Start → 5K
30:56 | 9:58/mi
10K
1:01:03
6.21 mi
Rank: #25428 (+396)
5K → 10K
30:07 | 9:42/mi
15K
1:29:47
9.32 mi
Rank: #24857 (+571)
10K → 15K
28:44 | 9:15/mi
20K
1:59:46
12.43 mi
Rank: #24679 (+178)
15K → 20K
29:59 | 9:40/mi
HALF
2:06:11
13.11 mi
Rank: #24663 (+16)
20K → HALF
6:25 | 9:25/mi
25K
2:29:17
15.53 mi
Rank: #24415 (+248)
HALF → 25K
23:06 | 9:32/mi
30K
2:59:56
18.64 mi
Rank: #24070 (+345)
25K → 30K
30:39 | 9:52/mi
20M
3:12:54
20.00 mi
Rank: #23853 (+217)
30K → 20M
12:58 | 9:33/mi
21M
3:22:56
21.00 mi
Rank: #23668 (+185)
20M → 21M
10:02 | 10:02/mi
35K
3:29:59
21.75 mi
Rank: #23587 (+81)
21M → 35K
7:03 | 9:26/mi
23M
3:41:47
23.00 mi
Rank: #23377 (+210)
35K → 23M
11:48 | 9:26/mi
24M
3:50:35
24.00 mi
Rank: #23189 (+188)
23M → 24M
8:48 | 8:48/mi
40K
3:58:13
24.85 mi
Rank: #23022 (+167)
24M → 40K
7:38 | 8:56/mi
25.2M
4:01:36
25.20 mi
Rank: #22966 (+56)
40K → 25.2M
3:23 | 9:49/mi
FINISH
4:10:15
26.22 mi
Rank: #22817 (+149)
25.2M → FINISH
8:39 | 8:30/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st Half
via HALF
Distance13.11 mi
Time2:06:11
Pace9:38 /mi
2nd Half✓ Faster
Distance13.11 mi
Time2:04:04
Pace9:28 /mi
📊Negative Split: 1.7% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:56:4930:569:5830:56
9:58
-
10K
6.21 mi12:26:561:01:039:5030:07
9:42
-0:16
15K
9.32 mi12:55:401:29:479:3828:44
9:15
-0:27
20K
12.43 mi13:25:391:59:469:3929:59
9:40
+0:25
HALF
13.11 mi13:32:042:06:119:386:25
9:25
-0:15
25K
15.53 mi13:55:102:29:179:3723:06
9:32
+0:07
30K
18.64 mi14:25:492:59:569:4030:39
9:52
+0:20
20M
20.00 mi14:38:473:12:549:3912:58
9:33
-0:19
21M
21.00 mi14:48:493:22:569:4010:02
10:02
+0:29
35K
21.75 mi14:55:523:29:599:407:03
9:26
-0:36
23M
23.00 mi15:07:403:41:479:3911:48
9:26
0:00
24M
24.00 mi15:16:283:50:359:378:48
8:48
-0:38
40K
24.85 mi15:24:063:58:139:367:38
8:56
+0:08
25.2M
25.20 mi15:27:294:01:369:363:23
9:49
+0:53
FINISH
26.22 mi15:36:084:10:159:348:39
8:30
-1:19

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

8:30 /mi

Average Pace

9:33 /mi

Slowest Pace

10:02 /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

53:49

22% of race

Time at Steady Pace

3:06:24

74% of race

Time at Slower Pace

10:02

4% of race

Average Pace: 9:33 /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 mi11:56:4930:569:5830:56
9:58
#25824
10K
6.21 mi12:26:561:01:039:5030:07
9:42
#25428
15K
9.32 mi12:55:401:29:479:3828:44
9:15
#24857
20K
12.43 mi13:25:391:59:469:3929:59
9:40
#24679
HALF
13.11 mi13:32:042:06:119:386:25
9:25
#24663
25K
15.53 mi13:55:102:29:179:3723:06
9:32
#24415
30K
18.64 mi14:25:492:59:569:4030:39
9:52
#24070
20M
20.00 mi14:38:473:12:549:3912:58
9:33
#23853
21M
21.00 mi14:48:493:22:569:4010:02
10:02
#23668
35K
21.75 mi14:55:523:29:599:407:03
9:26
#23587
23M
23.00 mi15:07:403:41:479:3911:48
9:26
#23377
24M
24.00 mi15:16:283:50:359:378:48
8:48
#23189
40K
24.85 mi15:24:063:58:139:367:38
8:56
#23022
25.2M
25.20 mi15:27:294:01:369:363:23
9:49
#22966
FINISH
26.22 mi15:36:084:10:159:348:39
8:30
#22817
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 mi25824151091510923657(Top 82%)14079(Top 86%)14079(Top 641%)
10K6.21 mi3.10 mi25428+39614931+17814931+17825079(Top 86%)14764(Top 90%)14764(Top 672%)
15K9.32 mi3.11 mi24857+57114660+27114660+27123657(Top 82%)14079(Top 86%)14079(Top 641%)
20K12.43 mi3.11 mi24679+17814573+8714573+8724167(Top 83%)14306(Top 88%)14306(Top 651%)
HALF13.11 mi0.68 mi24663+1614564+914564+924110(Top 83%)14262(Top 87%)14262(Top 649%)
25K15.53 mi2.42 mi24415+24814435+12914435+12923103(Top 80%)13758(Top 84%)13758(Top 626%)
30K18.64 mi3.11 mi24070+34514242+19314242+19322753(Top 78%)13507(Top 83%)13507(Top 615%)
20M20.00 mi1.36 mi23853+21714124+11814124+11821230(Top 73%)12693(Top 78%)12693(Top 577%)
21M21.00 mi1.00 mi23668+18514014+11014014+11020538(Top 71%)12339(Top 76%)12339(Top 561%)
35K21.75 mi0.75 mi23587+8113959+5513959+5521528(Top 74%)12739(Top 78%)12739(Top 580%)
23M23.00 mi1.25 mi23377+21013839+12013839+12020364(Top 70%)12145(Top 74%)12145(Top 553%)
24M24.00 mi1.00 mi23189+18813731+10813731+10818522(Top 64%)11213(Top 69%)11213(Top 510%)
40K24.85 mi0.85 mi23022+16713637+9413637+9418039(Top 62%)10924(Top 67%)10924(Top 497%)
25.2M25.20 mi0.35 mi22966+5613602+3513602+3518670(Top 64%)11236(Top 69%)11236(Top 511%)
FINISH26.22 mi1.02 mi22817+14913520+8213520+8218104(Top 62%)10946(Top 67%)10946(Top 498%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 82%
×21
+97ft-345ft

Overall

23657

Males

14079

M40-44

14079

5K→10K

3.1 - 6.2 mi

Top 86%
×5
+79ft-138ft

Overall

25079

Males

14764

M40-44

14764

10K→15K

6.2 - 9.3 mi

Top 82%
×3
+67ft-78ft

Overall

23657

Males

14079

M40-44

14079

15K→20K

9.3 - 12.4 mi

Top 83%
×5
+106ft-86ft

Overall

24167

Males

14306

M40-44

14306

20K→HALF

12.4 - 13.1 mi

Top 83%
×2
+19ft-37ft

Overall

24110

Males

14262

M40-44

14262

HALF→25K

13.1 - 15.5 mi

Top 80%
×4
+66ft-88ft

Overall

23103

Males

13758

M40-44

13758

25K→30K

15.5 - 18.6 mi

Top 78%
×9
+181ft-148ft

Overall

22753

Males

13507

M40-44

13507

30K→20M

18.6 - 20.0 mi

Top 73%
×5
+64ft-50ft

Overall

21230

Males

12693

M40-44

12693

20M→21M

20.0 - 21.0 mi

Top 71%
×8
+106ft-24ft

Overall

20538

Males

12339

M40-44

12339

21M→35K

21.0 - 21.8 mi

Top 74%
×7
+17ft-86ft

Overall

21528

Males

12739

M40-44

12739

35K→23M

21.8 - 23.0 mi

Top 70%
×5
+23ft-63ft

Overall

20364

Males

12145

M40-44

12145

23M→24M

23.0 - 24.0 mi

Top 64%
×6
+12ft-82ft

Overall

18522

Males

11213

M40-44

11213

24M→40K

24.0 - 24.9 mi

Top 62%
×1
+6ft-20ft

Overall

18039

Males

10924

M40-44

10924

40K→25.2M

24.9 - 25.2 mi

Top 64%
×1
+13ft-16ft

Overall

18670

Males

11236

M40-44

11236

25.2M→FINISH

25.2 - 26.2 mi

Top 62%
×2
+22ft-21ft

Overall

18104

Males

10946

M40-44

10946

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
3177*
Passed By
170
Net Change
+3007
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#25824
5K → 10K460*64+396#25824#25428
10K → 15K579*8+571#25428#24857
15K → 20K215*37+178#24857#24679
20K → HALF2913+16#24679#24663
HALF → 25K259*11+248#24663#24415
25K → 30K360*15+345#24415#24070
30K → 20M219*2+217#24070#23853
20M → 21M1905+185#23853#23668
21M → 35K887+81#23668#23587
35K → 23M211*1+210#23587#23377
23M → 24M1891+188#23377#23189
24M → 40K1681+167#23189#23022
40K → 25.2M571+56#23022#22966
25.2M → FINISH1534+149#22966#22817
TOTALS3177*170+3007

* 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