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BOSTON MARATHON 2025

Richard Bos

Bib: 29974•M

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

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
31:29
Rank: #25911
Start → 5K
31:29 | 10:08/mi
10K· 6.21 mi
1:06:29
Rank: #26850 (-939)
5K → 10K
35:00 | 11:16/mi
15K· 9.32 mi
1:38:03
Rank: #26320 (+530)
10K → 15K
31:34 | 10:10/mi
20K· 12.43 mi
2:10:48
Rank: #26020 (+300)
15K → 20K
32:45 | 10:32/mi
Half· 13.11 mi
2:17:56
Rank: #25995 (+25)
20K → Half
7:08 | 10:27/mi
25K· 15.53 mi
2:46:19
Rank: #26045 (-50)
Half → 25K
28:23 | 11:42/mi
30K· 18.64 mi
3:23:31
Rank: #25935 (+110)
25K → 30K
37:12 | 11:58/mi
20M
3:44:35
Rank: #26257 (-322)
30K → 20M
21:04 | 15:30/mi
21M
3:57:38
Rank: #26225 (+32)
20M → 21M
13:03 | 13:03/mi
35K· 21.75 mi
4:06:44
Rank: #26229 (-4)
21M → 35K
9:06 | 12:10/mi
23M
4:23:47
Rank: #26293 (-64)
35K → 23M
17:03 | 13:37/mi
24M
4:37:07
Rank: #26352 (-59)
23M → 24M
13:20 | 13:20/mi
40K· 24.85 mi
4:49:10
Rank: #26414 (-62)
24M → 40K
12:03 | 14:06/mi
25.2M
4:54:04
Rank: #26425 (-11)
40K → 25.2M
4:54 | 14:13/mi
Finish· 26.22 mi
5:05:27
Rank: #26404 (+21)
25.2M → Finish
11:23 | 11:10/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:17:56
Pace10:31 /mi
2nd Half
Distance13.11 mi
Time2:47:31
Pace12:47 /mi
📊Positive Split: 21.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:53:5031:2910:0831:29
10:08
-
10K
6.21 mi12:28:501:06:2910:4235:00
11:16
+1:08
15K
9.32 mi13:00:241:38:0310:3131:34
10:10
-1:06
20K
12.43 mi13:33:092:10:4810:3232:45
10:32
+0:22
Half
13.11 mi13:40:172:17:5610:317:08
10:27
-0:05
25K
15.53 mi14:08:402:46:1910:4228:23
11:42
+1:15
30K
18.64 mi14:45:523:23:3110:5537:12
11:58
+0:16
20M
20.00 mi15:06:563:44:3511:1421:04
15:30
+3:32
21M
21.00 mi15:19:593:57:3811:1913:03
13:03
-2:27
35K
21.75 mi15:29:054:06:4411:219:06
12:10
-0:53
23M
23.00 mi15:46:084:23:4711:2817:03
13:37
+1:27
24M
24.00 mi15:59:284:37:0711:3313:20
13:20
-0:17
40K
24.85 mi16:11:314:49:1011:3812:03
14:06
+0:46
25.2M
25.20 mi16:16:254:54:0411:404:54
14:13
+0:07
Finish
26.22 mi16:27:485:05:2711:4011:23
11:10
-3:03

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

10:08 /mi

Average Pace

11:40 /mi

Slowest Pace

15:30 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:42:56

34% of race

Time at Steady Pace

2:01:04

40% of race

Time at Slower Pace

1:21:27

27% of race

Average Pace: 11:39 /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 mi11:53:5031:2910:0831:29
10:08
#25911
10K
6.21 mi12:28:501:06:2910:4235:00
11:16
#26850
15K
9.32 mi13:00:241:38:0310:3131:34
10:10
#26320
20K
12.43 mi13:33:092:10:4810:3232:45
10:32
#26020
Half
13.11 mi13:40:172:17:5610:317:08
10:27
#25995
25K
15.53 mi14:08:402:46:1910:4228:23
11:42
#26045
30K
18.64 mi14:45:523:23:3110:5537:12
11:58
#25935
20M
20.00 mi15:06:563:44:3511:1421:04
15:30
#26257
21M
21.00 mi15:19:593:57:3811:1913:03
13:03
#26225
35K
21.75 mi15:29:054:06:4411:219:06
12:10
#26229
23M
23.00 mi15:46:084:23:4711:2817:03
13:37
#26293
24M
24.00 mi15:59:284:37:0711:3313:20
13:20
#26352
40K
24.85 mi16:11:314:49:1011:3812:03
14:06
#26414
25.2M
25.20 mi16:16:254:54:0411:404:54
14:13
#26425
Finish
26.22 mi16:27:485:05:2711:4011:23
11:10
#26404
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi25911151311513125335(Top 89%)14850(Top 92%)14850(Top 263%)
10K6.21 mi3.10 mi26850-93915531-40015531-40027348(Top 96%)15704(Top 98%)15704(Top 278%)
15K9.32 mi3.11 mi26320+53015293+23815293+23825335(Top 89%)14850(Top 92%)14850(Top 263%)
20K12.43 mi3.11 mi26020+30015154+13915154+13925263(Top 89%)14788(Top 92%)14788(Top 262%)
Half13.11 mi0.68 mi25995+2515141+1315141+1325730(Top 91%)14989(Top 93%)14989(Top 266%)
25K15.53 mi2.42 mi26045-5015156-1515156-1526105(Top 92%)15122(Top 94%)15122(Top 268%)
30K18.64 mi3.11 mi25935+11015078+7815078+7825563(Top 90%)14790(Top 92%)14790(Top 262%)
20M20.00 mi1.36 mi26257-32215210-13215210-13228047(Top 99%)15897(Top 99%)15897(Top 282%)
21M21.00 mi1.00 mi26225+3215182+2815182+2825104(Top 88%)14428(Top 90%)14428(Top 256%)
35K21.75 mi0.75 mi26229-415179+315179+326096(Top 92%)14884(Top 92%)14884(Top 264%)
23M23.00 mi1.25 mi26293-6415191-1215191-1226984(Top 95%)15321(Top 95%)15321(Top 272%)
24M24.00 mi1.00 mi26352-5915211-2015211-2027179(Top 96%)15376(Top 95%)15376(Top 273%)
40K24.85 mi0.85 mi26414-6215237-2615237-2627249(Top 96%)15414(Top 96%)15414(Top 273%)
25.2M25.20 mi0.35 mi26425-1115240-315240-326502(Top 93%)15002(Top 93%)15002(Top 266%)
Finish26.22 mi1.02 mi26404+2115222+1815222+1825668(Top 90%)14614(Top 91%)14614(Top 259%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 89%
×21stories
+97ft-345ft

Overall

25335

Males

14850

M18-39

14850

5K→10K

3.1 - 6.2 mi

Top 96%
×5stories
+79ft-138ft

Overall

27348

Males

15704

M18-39

15704

10K→15K

6.2 - 9.3 mi

Top 89%
×3stories
+67ft-78ft

Overall

25335

Males

14850

M18-39

14850

15K→20K

9.3 - 12.4 mi

Top 89%
×5stories
+106ft-86ft

Overall

25263

Males

14788

M18-39

14788

20K→Half

12.4 - 13.1 mi

Top 91%
×2stories
+19ft-37ft

Overall

25730

Males

14989

M18-39

14989

Half→25K

13.1 - 15.5 mi

Top 92%
×4stories
+66ft-88ft

Overall

26105

Males

15122

M18-39

15122

25K→30K

15.5 - 18.6 mi

Top 90%
×9stories
+181ft-148ft

Overall

25563

Males

14790

M18-39

14790

30K→20M

18.6 - 20.0 mi

Top 99%
×5stories
+64ft-50ft

Overall

28047

Males

15897

M18-39

15897

20M→21M

20.0 - 21.0 mi

Top 88%
×8stories
+106ft-24ft

Overall

25104

Males

14428

M18-39

14428

21M→35K

21.0 - 21.8 mi

Top 92%
×7stories
+17ft-86ft

Overall

26096

Males

14884

M18-39

14884

35K→23M

21.8 - 23.0 mi

Top 95%
×5stories
+23ft-63ft

Overall

26984

Males

15321

M18-39

15321

23M→24M

23.0 - 24.0 mi

Top 96%
×6stories
+12ft-82ft

Overall

27179

Males

15376

M18-39

15376

24M→40K

24.0 - 24.9 mi

Top 96%
×1story
+6ft-20ft

Overall

27249

Males

15414

M18-39

15414

40K→25.2M

24.9 - 25.2 mi

Top 93%
×1story
+13ft-16ft

Overall

26502

Males

15002

M18-39

15002

25.2M→Finish

25.2 - 26.2 mi

Top 90%
×2stories
+22ft-21ft

Overall

25668

Males

14614

M18-39

14614

Passing Analysis

Category:
Athletes Passed
1312
Passed By
1805
Net Change
-493
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#25911
5K → 10K16955-939#25911#26850
10K → 15K5322+530#26850#26320
15K → 20K3077+300#26320#26020
20K → Half3712+25#26020#25995
Half → 25K60110-50#25995#26045
25K → 30K17565+110#26045#25935
30K → 20M8330-322#25935#26257
20M → 21M6432+32#26257#26225
21M → 35K2731-4#26225#26229
35K → 23M1781-64#26229#26293
23M → 24M1372-59#26293#26352
24M → 40K1375-62#26352#26414
40K → 25.2M1223-11#26414#26425
25.2M → Finish3110+21#26425#26404
TOTALS13121805-493
📊

Passing Visuals

Category:
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🔥Passing Intensity

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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