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BOSTON MARATHON 2025

Dan Kremer

Bib: 3905•M

CA

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 12%
Gender (Male)
#0 / 16105
Top 20%
Division (M18-39)
#0 / 5642
Top 43%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
19:47
Rank: #2888
Start → 5K
19:47 | 6:22/mi
10K· 6.21 mi
39:35
Rank: #2848 (+40)
5K → 10K
19:48 | 6:22/mi
15K· 9.32 mi
1:00:05
Rank: #3299 (-451)
10K → 15K
20:30 | 6:36/mi
20K· 12.43 mi
1:20:54
Rank: #3588 (-289)
15K → 20K
20:49 | 6:42/mi
Half· 13.11 mi
1:25:19
Rank: #3579 (+9)
20K → Half
4:25 | 6:28/mi
25K· 15.53 mi
1:41:15
Rank: #3508 (+71)
Half → 25K
15:56 | 6:34/mi
30K· 18.64 mi
2:02:19
Rank: #3402 (+106)
25K → 30K
21:04 | 6:47/mi
20M
2:11:41
Rank: #3375 (+27)
30K → 20M
9:22 | 6:54/mi
21M
2:18:56
Rank: #3344 (+31)
20M → 21M
7:15 | 7:15/mi
35K· 21.75 mi
2:23:54
Rank: #3306 (+38)
21M → 35K
4:58 | 6:38/mi
23M
2:32:37
Rank: #3261 (+45)
35K → 23M
8:43 | 6:58/mi
24M
2:39:33
Rank: #3268 (-7)
23M → 24M
6:56 | 6:56/mi
40K· 24.85 mi
2:45:32
Rank: #3264 (+4)
24M → 40K
5:59 | 7:00/mi
25.2M
2:48:15
Rank: #3274 (-10)
40K → 25.2M
2:43 | 7:53/mi
Finish· 26.22 mi
2:55:36
Rank: #3379 (-105)
25.2M → Finish
7:21 | 7:13/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:25:19
Pace6:30 /mi
2nd Half
Distance13.11 mi
Time1:30:17
Pace6:53 /mi
📊Positive Split: 5.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:22:3519:476:2219:47
6:22
-
10K
6.21 mi10:42:2339:356:2219:48
6:22
0:00
15K
9.32 mi11:02:531:00:056:2720:30
6:36
+0:14
20K
12.43 mi11:23:421:20:546:3120:49
6:42
+0:06
Half
13.11 mi11:28:071:25:196:304:25
6:28
-0:14
25K
15.53 mi11:44:031:41:156:3115:56
6:34
+0:06
30K
18.64 mi12:05:072:02:196:3421:04
6:47
+0:13
20M
20.00 mi12:14:292:11:416:359:22
6:54
+0:07
21M
21.00 mi12:21:442:18:566:377:15
7:15
+0:21
35K
21.75 mi12:26:422:23:546:374:58
6:38
-0:37
23M
23.00 mi12:35:252:32:376:388:43
6:58
+0:20
24M
24.00 mi12:42:212:39:336:396:56
6:56
-0:02
40K
24.85 mi12:48:202:45:326:405:59
7:00
+0:04
25.2M
25.20 mi12:51:032:48:156:412:43
7:53
+0:53
Finish
26.22 mi12:58:242:55:366:427:21
7:13
-0:40

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

6:22 /mi

Average Pace

6:42 /mi

Slowest Pace

7:53 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

59:56

34% of race

Time at Steady Pace

1:32:22

53% of race

Time at Slower Pace

23:18

13% of race

Average Pace: 6:42 /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 mi10:22:3519:476:2219:47
6:22
#2888
10K
6.21 mi10:42:2339:356:2219:48
6:22
#2848
15K
9.32 mi11:02:531:00:056:2720:30
6:36
#3299
20K
12.43 mi11:23:421:20:546:3120:49
6:42
#3588
Half
13.11 mi11:28:071:25:196:304:25
6:28
#3579
25K
15.53 mi11:44:031:41:156:3115:56
6:34
#3508
30K
18.64 mi12:05:072:02:196:3421:04
6:47
#3402
20M
20.00 mi12:14:292:11:416:359:22
6:54
#3375
21M
21.00 mi12:21:442:18:566:377:15
7:15
#3344
35K
21.75 mi12:26:422:23:546:374:58
6:38
#3306
23M
23.00 mi12:35:252:32:376:388:43
6:58
#3261
24M
24.00 mi12:42:212:39:336:396:56
6:56
#3268
40K
24.85 mi12:48:202:45:326:405:59
7:00
#3264
25.2M
25.20 mi12:51:032:48:156:412:43
7:53
#3274
Finish
26.22 mi12:58:242:55:366:427:21
7:13
#3379
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi2888274927494218(Top 15%)3967(Top 25%)3967(Top 70%)
10K6.21 mi3.10 mi2848+402714+352714+352879(Top 10%)2741(Top 17%)2741(Top 49%)
15K9.32 mi3.11 mi3299-4513135-4213135-4214218(Top 15%)3967(Top 25%)3967(Top 70%)
20K12.43 mi3.11 mi3588-2893398-2633398-2634438(Top 16%)4142(Top 26%)4142(Top 73%)
Half13.11 mi0.68 mi3579+93389+93389+93540(Top 12%)3356(Top 21%)3356(Top 59%)
25K15.53 mi2.42 mi3508+713321+683321+683292(Top 12%)3118(Top 19%)3118(Top 55%)
30K18.64 mi3.11 mi3402+1063219+1023219+1023330(Top 12%)3113(Top 19%)3113(Top 55%)
20M20.00 mi1.36 mi3375+273193+263193+263486(Top 12%)3222(Top 20%)3222(Top 57%)
21M21.00 mi1.00 mi3344+313161+323161+323391(Top 12%)3113(Top 19%)3113(Top 55%)
35K21.75 mi0.75 mi3306+383122+393122+393180(Top 11%)2922(Top 18%)2922(Top 52%)
23M23.00 mi1.25 mi3261+453079+433079+433538(Top 12%)3208(Top 20%)3208(Top 57%)
24M24.00 mi1.00 mi3268-73077+23077+24264(Top 15%)3745(Top 23%)3745(Top 66%)
40K24.85 mi0.85 mi3264+43074+33074+33895(Top 14%)3414(Top 21%)3414(Top 61%)
25.2M25.20 mi0.35 mi3274-103082-83082-85273(Top 19%)4294(Top 27%)4294(Top 76%)
Finish26.22 mi1.02 mi3379-1053163-813163-817095(Top 25%)5382(Top 33%)5382(Top 95%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 15%
×21stories
+97ft-345ft

Overall

4218

Males

3967

M18-39

3967

5K→10K

3.1 - 6.2 mi

Top 10%
×5stories
+79ft-138ft

Overall

2879

Males

2741

M18-39

2741

10K→15K

6.2 - 9.3 mi

Top 15%
×3stories
+67ft-78ft

Overall

4218

Males

3967

M18-39

3967

15K→20K

9.3 - 12.4 mi

Top 16%
×5stories
+106ft-86ft

Overall

4438

Males

4142

M18-39

4142

20K→Half

12.4 - 13.1 mi

Top 12%
×2stories
+19ft-37ft

Overall

3540

Males

3356

M18-39

3356

Half→25K

13.1 - 15.5 mi

Top 12%
×4stories
+66ft-88ft

Overall

3292

Males

3118

M18-39

3118

25K→30K

15.5 - 18.6 mi

Top 12%
×9stories
+181ft-148ft

Overall

3330

Males

3113

M18-39

3113

30K→20M

18.6 - 20.0 mi

Top 12%
×5stories
+64ft-50ft

Overall

3486

Males

3222

M18-39

3222

20M→21M

20.0 - 21.0 mi

Top 12%
×8stories
+106ft-24ft

Overall

3391

Males

3113

M18-39

3113

21M→35K

21.0 - 21.8 mi

Top 11%
×7stories
+17ft-86ft

Overall

3180

Males

2922

M18-39

2922

35K→23M

21.8 - 23.0 mi

Top 12%
×5stories
+23ft-63ft

Overall

3538

Males

3208

M18-39

3208

23M→24M

23.0 - 24.0 mi

Top 15%
×6stories
+12ft-82ft

Overall

4264

Males

3745

M18-39

3745

24M→40K

24.0 - 24.9 mi

Top 14%
×1story
+6ft-20ft

Overall

3895

Males

3414

M18-39

3414

40K→25.2M

24.9 - 25.2 mi

Top 19%
×1story
+13ft-16ft

Overall

5273

Males

4294

M18-39

4294

25.2M→Finish

25.2 - 26.2 mi

Top 25%
×2stories
+22ft-21ft

Overall

7095

Males

5382

M18-39

5382

Passing Analysis

Category:
Athletes Passed
885
Passed By
1376
Net Change
-491
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#2888
5K → 10K150110+40#2888#2848
10K → 15K14465-451#2848#3299
15K → 20K32321-289#3299#3588
20K → Half2314+9#3588#3579
Half → 25K10635+71#3579#3508
25K → 30K16054+106#3508#3402
30K → 20M7245+27#3402#3375
20M → 21M6736+31#3375#3344
21M → 35K5416+38#3344#3306
35K → 23M8439+45#3306#3261
23M → 24M3946-7#3261#3268
24M → 40K4339+4#3268#3264
40K → 25.2M1626-10#3264#3274
25.2M → Finish25130-105#3274#3379
TOTALS8851376-491
📊

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