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BOSTON MARATHON 2025

Christoph Kapp

Bib: 11799•M

MA

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 42%
Gender (Male)
#0 / 16105
Division (M18-39)
#0 / 5642
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
7:29/mi
23:14
↑ 97↓ 3451.5%
10K· 6.21 mi
7:36/mi
46:51
↑ 79↓ 1380.4%
15K· 9.32 mi
7:49/mi
1:11:07
↑ 67↓ 78
20K· 12.43 mi
7:28/mi
1:34:18
↑ 106↓ 860.1%
Half· 13.11 mi
7:23/mi
1:39:20
↑ 19↓ 370.5%
25K· 15.53 mi
7:31/mi
1:57:34
↑ 66↓ 880.2%
30K· 18.64 mi
7:53/mi
2:22:04
↑ 181↓ 1480.2%
20M
8:13/mi
2:33:14
↑ 64↓ 500.2%
21M
8:37/mi
2:41:51
↑ 106↓ 241.6%
35K· 21.75 mi
8:05/mi
2:47:54
↑ 17↓ 861.7%
23M
8:33/mi
2:58:36
↑ 23↓ 630.6%
24M
8:33/mi
3:07:09
↓ 821.3%
40K· 24.85 mi
8:42/mi
3:14:35
↓ 200.3%
25.2M
9:20/mi
3:17:48
↑ 13↓ 160.2%
Finish· 26.22 mi
8:00/mi
3:25:57
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:39:20
Pace7:35 /mi
2nd Half
Distance13.11 mi
Time1:46:37
Pace8:08 /mi
📊Positive Split: 7.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:50:3923:147:2923:14
7:29
-
10K
6.21 mi11:14:1646:517:3223:37
7:36
+0:07
15K
9.32 mi11:38:321:11:077:3824:16
7:49
+0:13
20K
12.43 mi12:01:431:34:187:3523:11
7:28
-0:21
Half
13.11 mi12:06:451:39:207:355:02
7:23
-0:05
25K
15.53 mi12:24:591:57:347:3418:14
7:31
+0:08
30K
18.64 mi12:49:292:22:047:3724:30
7:53
+0:22
20M
20.00 mi13:00:392:33:147:4011:10
8:13
+0:20
21M
21.00 mi13:09:162:41:517:428:37
8:37
+0:24
35K
21.75 mi13:15:192:47:547:436:03
8:05
-0:32
23M
23.00 mi13:26:012:58:367:4610:42
8:33
+0:28
24M
24.00 mi13:34:343:07:097:488:33
8:33
0:00
40K
24.85 mi13:42:003:14:357:507:26
8:42
+0:09
25.2M
25.20 mi13:45:133:17:487:513:13
9:20
+0:38
Finish
26.22 mi13:53:223:25:577:528:09
8:00
-1:20

Checkpoints & Pacing

📈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

7:23 /mi

Average Pace

7:52 /mi

Slowest Pace

9:20 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:33:18

45% of race

Time at Steady Pace

1:14:08

36% of race

Time at Slower Pace

38:31

19% of race

Average Pace: 7:51 /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

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi10:50:3923:147:2923:14
7:29
#12044
10K
6.21 mi11:14:1646:517:3223:37
7:36
#12476
15K
9.32 mi11:38:321:11:077:3824:16
7:49
#13129
20K
12.43 mi12:01:431:34:187:3523:11
7:28
#12384
Half
13.11 mi12:06:451:39:207:355:02
7:23
#12304
25K
15.53 mi12:24:591:57:347:3418:14
7:31
#11906
30K
18.64 mi12:49:292:22:047:3724:30
7:53
#11602
20M
20.00 mi13:00:392:33:147:4011:10
8:13
#11559
21M
21.00 mi13:09:162:41:517:428:37
8:37
#11536
35K
21.75 mi13:15:192:47:547:436:03
8:05
#11587
23M
23.00 mi13:26:012:58:367:4610:42
8:33
#11690
24M
24.00 mi13:34:343:07:097:488:33
8:33
#11825
40K
24.85 mi13:42:003:14:357:507:26
8:42
#11930
25.2M
25.20 mi13:45:133:17:487:513:13
9:20
#11944
Finish
26.22 mi13:53:223:25:577:528:09
8:00
#11972
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi120449192919214440(Top 51%)10115(Top 63%)10115(Top 179%)
10K6.21 mi3.10 mi12476-4329385-1939385-19313023(Top 46%)9603(Top 60%)9603(Top 170%)
15K9.32 mi3.11 mi13129-6539624-2399624-23914440(Top 51%)10115(Top 63%)10115(Top 179%)
20K12.43 mi3.11 mi12384+7459269+3559269+35510425(Top 37%)8228(Top 51%)8228(Top 146%)
Half13.11 mi0.68 mi12304+809229+409229+4010663(Top 38%)8385(Top 52%)8385(Top 149%)
25K15.53 mi2.42 mi11906+3989001+2289001+22810136(Top 36%)7961(Top 49%)7961(Top 141%)
30K18.64 mi3.11 mi11602+3048788+2138788+21310527(Top 37%)7952(Top 49%)7952(Top 141%)
20M20.00 mi1.36 mi11559+438727+618727+6111891(Top 42%)8474(Top 53%)8474(Top 150%)
21M21.00 mi1.00 mi11536+238677+508677+5011182(Top 39%)7967(Top 49%)7967(Top 141%)
35K21.75 mi0.75 mi11587-518677867712796(Top 45%)8709(Top 54%)8709(Top 154%)
23M23.00 mi1.25 mi11690-1038688-118688-1113577(Top 48%)8969(Top 56%)8969(Top 159%)
24M24.00 mi1.00 mi11825-1358712-248712-2414794(Top 52%)9487(Top 59%)9487(Top 168%)
40K24.85 mi0.85 mi11930-1058722-108722-1014547(Top 51%)9236(Top 57%)9236(Top 164%)
25.2M25.20 mi0.35 mi11944-148718+48718+413541(Top 48%)8711(Top 54%)8711(Top 154%)
Finish26.22 mi1.02 mi11972-288707+118707+1112837(Top 45%)8450(Top 52%)8450(Top 150%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 51%
×21story building
+97ft-345ft

Overall

14440

Males

10115

M18-39

10115

5K→10K

3.1 - 6.2 mi

Top 46%
×5story building
+79ft-138ft

Overall

13023

Males

9603

M18-39

9603

10K→15K

6.2 - 9.3 mi

Top 51%
×3story building
+67ft-78ft

Overall

14440

Males

10115

M18-39

10115

15K→20K

9.3 - 12.4 mi

Top 37%
×5story building
+106ft-86ft

Overall

10425

Males

8228

M18-39

8228

20K→Half

12.4 - 13.1 mi

Top 38%
×2story building
+19ft-37ft

Overall

10663

Males

8385

M18-39

8385

Half→25K

13.1 - 15.5 mi

Top 36%
×4story building
+66ft-88ft

Overall

10136

Males

7961

M18-39

7961

25K→30K

15.5 - 18.6 mi

Top 37%
×9story building
+181ft-148ft

Overall

10527

Males

7952

M18-39

7952

30K→20M

18.6 - 20.0 mi

Top 42%
×5story building
+64ft-50ft

Overall

11891

Males

8474

M18-39

8474

20M→21M

20.0 - 21.0 mi

Top 39%
×8story building
+106ft-24ft

Overall

11182

Males

7967

M18-39

7967

21M→35K

21.0 - 21.8 mi

Top 45%
×7story building
+17ft-86ft

Overall

12796

Males

8709

M18-39

8709

35K→23M

21.8 - 23.0 mi

Top 48%
×5story building
+23ft-63ft

Overall

13577

Males

8969

M18-39

8969

23M→24M

23.0 - 24.0 mi

Top 52%
×6story building
+12ft-82ft

Overall

14794

Males

9487

M18-39

9487

24M→40K

24.0 - 24.9 mi

Top 51%
×1story
+6ft-20ft

Overall

14547

Males

9236

M18-39

9236

40K→25.2M

24.9 - 25.2 mi

Top 48%
×1story
+13ft-16ft

Overall

13541

Males

8711

M18-39

8711

25.2M→Finish

25.2 - 26.2 mi

Top 45%
×2story building
+22ft-21ft

Overall

12837

Males

8450

M18-39

8450

Passing Analysis

Category:
Athletes Passed
2357
Passed By
2285
Net Change
+72
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#12044
5K → 10K113545-432#12044#12476
10K → 15K51704-653#12476#13129
15K → 20K7527+745#13129#12384
20K → Half888+80#12384#12304
Half → 25K40810+398#12304#11906
25K → 30K38177+304#11906#11602
30K → 20M13491+43#11602#11559
20M → 21M11996+23#11559#11536
21M → 35K4394-51#11536#11587
35K → 23M79182-103#11587#11690
23M → 24M51186-135#11690#11825
24M → 40K52157-105#11825#11930
40K → 25.2M2337-14#11930#11944
25.2M → Finish6391-28#11944#11972
TOTALS23572285+72
📊

Passing Visuals

Category:
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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing