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BOSTON MARATHON 2025

Boston Strob

Bib: 31621•M

NH

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

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
9:54/mi
30:46
↑ 97↓ 3451.5%
10K· 6.21 mi
10:44/mi
1:04:07
↑ 79↓ 1380.4%
15K· 9.32 mi
11:37/mi
1:40:14
↑ 67↓ 78
20K· 12.43 mi
12:05/mi
2:17:45
↑ 106↓ 860.1%
Half· 13.11 mi
12:54/mi
2:26:33
↑ 19↓ 370.5%
25K· 15.53 mi
13:32/mi
2:59:22
↑ 66↓ 880.2%
30K· 18.64 mi
13:22/mi
3:40:53
↑ 181↓ 1480.2%
20M
14:06/mi
4:00:02
↑ 64↓ 500.2%
21M
14:26/mi
4:14:28
↑ 106↓ 241.6%
35K· 21.75 mi
13:09/mi
4:24:18
↑ 17↓ 861.7%
23M
13:35/mi
4:41:19
↑ 23↓ 630.6%
24M
13:10/mi
4:54:29
↓ 821.3%
40K· 24.85 mi
13:39/mi
5:06:09
↓ 200.3%
25.2M
13:38/mi
5:10:51
↑ 13↓ 160.2%
Finish· 26.22 mi
11:41/mi
5:22:45
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:26:33
Pace11:11 /mi
2nd Half
Distance13.11 mi
Time2:56:12
Pace13:26 /mi
📊Positive Split: 20.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:52:5330:469:5430:46
9:54
-
10K
6.21 mi12:26:141:04:0710:1933:21
10:44
+0:50
15K
9.32 mi13:02:211:40:1410:4536:07
11:37
+0:53
20K
12.43 mi13:39:522:17:4511:0537:31
12:05
+0:28
Half
13.11 mi13:48:402:26:3311:118:48
12:54
+0:49
25K
15.53 mi14:21:292:59:2211:3332:49
13:32
+0:38
30K
18.64 mi15:03:003:40:5311:5141:31
13:22
-0:10
20M
20.00 mi15:22:094:00:0212:0019:09
14:06
+0:44
21M
21.00 mi15:36:354:14:2812:0714:26
14:26
+0:20
35K
21.75 mi15:46:254:24:1812:099:50
13:09
-1:17
23M
23.00 mi16:03:264:41:1912:1417:01
13:35
+0:26
24M
24.00 mi16:16:364:54:2912:1613:10
13:10
-0:25
40K
24.85 mi16:28:165:06:0912:1911:40
13:39
+0:29
25.2M
25.20 mi16:32:585:10:5112:204:42
13:38
-0:01
Finish
26.22 mi16:44:525:22:4512:1911:54
11:41
-1:57

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

9:54 /mi

Average Pace

12:19 /mi

Slowest Pace

14:26 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:29:39

46% of race

Time at Steady Pace

2:19:31

43% of race

Time at Slower Pace

33:35

10% of race

Average Pace: 12:19 /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 mi11:52:5330:469:5430:46
9:54
#25357
10K
6.21 mi12:26:141:04:0710:1933:21
10:44
#26118
15K
9.32 mi13:02:211:40:1410:4536:07
11:37
#26711
20K
12.43 mi13:39:522:17:4511:0537:31
12:05
#26901
Half
13.11 mi13:48:402:26:3311:118:48
12:54
#26996
25K
15.53 mi14:21:292:59:2211:3332:49
13:32
#27156
30K
18.64 mi15:03:003:40:5311:5141:31
13:22
#27141
20M
20.00 mi15:22:094:00:0212:0019:09
14:06
#27193
21M
21.00 mi15:36:354:14:2812:0714:26
14:26
#27171
35K
21.75 mi15:46:254:24:1812:099:50
13:09
#27177
23M
23.00 mi16:03:264:41:1912:1417:01
13:35
#27182
24M
24.00 mi16:16:364:54:2912:1613:10
13:10
#27181
40K
24.85 mi16:28:165:06:0912:1911:40
13:39
#27186
25.2M
25.20 mi16:32:585:10:5112:204:42
13:38
#27175
Finish
26.22 mi16:44:525:22:4512:1911:54
11:41
#27156
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi25357148921489227344(Top 96%)15691(Top 97%)15691(Top 278%)
10K6.21 mi3.10 mi26118-76115216-32415216-32426662(Top 94%)15443(Top 96%)15443(Top 274%)
15K9.32 mi3.11 mi26711-59315469-25315469-25327344(Top 96%)15691(Top 97%)15691(Top 278%)
20K12.43 mi3.11 mi26901-19015525-5615525-5627181(Top 96%)15608(Top 97%)15608(Top 277%)
Half13.11 mi0.68 mi26996-9515558-3315558-3327962(Top 98%)15908(Top 99%)15908(Top 282%)
25K15.53 mi2.42 mi27156-16015618-6015618-6027633(Top 97%)15772(Top 98%)15772(Top 280%)
30K18.64 mi3.11 mi27141+1515591+2715591+2727020(Top 95%)15446(Top 96%)15446(Top 274%)
20M20.00 mi1.36 mi27193-5215605-1415605-1427364(Top 96%)15550(Top 97%)15550(Top 276%)
21M21.00 mi1.00 mi27171+2215591+1415591+1426654(Top 94%)15190(Top 94%)15190(Top 269%)
35K21.75 mi0.75 mi27177-615584+715584+727097(Top 95%)15390(Top 96%)15390(Top 273%)
23M23.00 mi1.25 mi27182-515578+615578+626959(Top 95%)15308(Top 95%)15308(Top 271%)
24M24.00 mi1.00 mi27181+115569+915569+927028(Top 95%)15311(Top 95%)15311(Top 271%)
40K24.85 mi0.85 mi27186-515571-215571-226893(Top 95%)15233(Top 95%)15233(Top 270%)
25.2M25.20 mi0.35 mi27175+1115565+615565+625854(Top 91%)14679(Top 91%)14679(Top 260%)
Finish26.22 mi1.02 mi27156+1915549+1615549+1626400(Top 93%)14996(Top 93%)14996(Top 266%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 96%
×21story building
+97ft-345ft

Overall

27344

Males

15691

M18-39

15691

5K→10K

3.1 - 6.2 mi

Top 94%
×5story building
+79ft-138ft

Overall

26662

Males

15443

M18-39

15443

10K→15K

6.2 - 9.3 mi

Top 96%
×3story building
+67ft-78ft

Overall

27344

Males

15691

M18-39

15691

15K→20K

9.3 - 12.4 mi

Top 96%
×5story building
+106ft-86ft

Overall

27181

Males

15608

M18-39

15608

20K→Half

12.4 - 13.1 mi

Top 98%
×2story building
+19ft-37ft

Overall

27962

Males

15908

M18-39

15908

Half→25K

13.1 - 15.5 mi

Top 97%
×4story building
+66ft-88ft

Overall

27633

Males

15772

M18-39

15772

25K→30K

15.5 - 18.6 mi

Top 95%
×9story building
+181ft-148ft

Overall

27020

Males

15446

M18-39

15446

30K→20M

18.6 - 20.0 mi

Top 96%
×5story building
+64ft-50ft

Overall

27364

Males

15550

M18-39

15550

20M→21M

20.0 - 21.0 mi

Top 94%
×8story building
+106ft-24ft

Overall

26654

Males

15190

M18-39

15190

21M→35K

21.0 - 21.8 mi

Top 95%
×7story building
+17ft-86ft

Overall

27097

Males

15390

M18-39

15390

35K→23M

21.8 - 23.0 mi

Top 95%
×5story building
+23ft-63ft

Overall

26959

Males

15308

M18-39

15308

23M→24M

23.0 - 24.0 mi

Top 95%
×6story building
+12ft-82ft

Overall

27028

Males

15311

M18-39

15311

24M→40K

24.0 - 24.9 mi

Top 95%
×1story
+6ft-20ft

Overall

26893

Males

15233

M18-39

15233

40K→25.2M

24.9 - 25.2 mi

Top 91%
×1story
+13ft-16ft

Overall

25854

Males

14679

M18-39

14679

25.2M→Finish

25.2 - 26.2 mi

Top 93%
×2story building
+22ft-21ft

Overall

26400

Males

14996

M18-39

14996

Passing Analysis

Category:
Athletes Passed
372
Passed By
2171
Net Change
-1799
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#25357
5K → 10K29790-761#25357#26118
10K → 15K13606-593#26118#26711
15K → 20K55245-190#26711#26901
20K → Half6101-95#26901#26996
Half → 25K21181-160#26996#27156
25K → 30K8368+15#27156#27141
30K → 20M1870-52#27141#27193
20M → 21M3412+22#27193#27171
21M → 35K1622-6#27171#27177
35K → 23M2025-5#27177#27182
23M → 24M2322+1#27182#27181
24M → 40K1318-5#27181#27186
40K → 25.2M165+11#27186#27175
25.2M → Finish256+19#27175#27156
TOTALS3722171-1799
📊

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