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BOSTON MARATHON 2025

Andrew Crompton

Bib: 2494•M

MA

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 0.9%
Gender (Male)
#0 / 16105
Top 1%
Division (M18-39)
#0 / 5642
Top 4%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
18:07
Rank: #672
Start → 5K
18:07 | 5:50/mi
10K· 6.21 mi
35:38
Rank: #496 (+176)
5K → 10K
17:31 | 5:38/mi
15K· 9.32 mi
53:07
Rank: #401 (+95)
10K → 15K
17:29 | 5:38/mi
20K· 12.43 mi
1:10:29
Rank: #339 (+62)
15K → 20K
17:22 | 5:35/mi
Half· 13.11 mi
1:14:15
Rank: #334 (+5)
20K → Half
3:46 | 5:31/mi
25K· 15.53 mi
1:27:45
Rank: #294 (+40)
Half → 25K
13:30 | 5:34/mi
30K· 18.64 mi
1:45:48
Rank: #273 (+21)
25K → 30K
18:03 | 5:49/mi
20M
1:53:40
Rank: #260 (+13)
30K → 20M
7:52 | 5:47/mi
21M
1:59:41
Rank: #241 (+19)
20M → 21M
6:01 | 6:01/mi
35K· 21.75 mi
2:03:53
Rank: #235 (+6)
21M → 35K
4:12 | 5:37/mi
23M
2:11:15
Rank: #222 (+13)
35K → 23M
7:22 | 5:53/mi
24M
2:17:16
Rank: #231 (-9)
23M → 24M
6:01 | 6:01/mi
40K· 24.85 mi
2:22:29
Rank: #232 (-1)
24M → 40K
5:13 | 6:06/mi
25.2M
2:24:53
Rank: #238 (-6)
40K → 25.2M
2:24 | 6:58/mi
Finish· 26.22 mi
2:31:24
Rank: #256 (-18)
25.2M → Finish
6:31 | 6:24/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:14:15
Pace5:40 /mi
2nd Half
Distance13.11 mi
Time1:17:09
Pace5:53 /mi
📊Positive Split: 3.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:19:1118:075:5018:07
5:50
-
10K
6.21 mi10:36:4235:385:4417:31
5:38
-0:12
15K
9.32 mi10:54:1153:075:4217:29
5:38
0:00
20K
12.43 mi11:11:331:10:295:4017:22
5:35
-0:03
Half
13.11 mi11:15:191:14:155:403:46
5:31
-0:04
25K
15.53 mi11:28:491:27:455:3913:30
5:34
+0:03
30K
18.64 mi11:46:521:45:485:4118:03
5:49
+0:15
20M
20.00 mi11:54:441:53:405:417:52
5:47
-0:02
21M
21.00 mi12:00:451:59:415:426:01
6:01
+0:14
35K
21.75 mi12:04:572:03:535:424:12
5:37
-0:24
23M
23.00 mi12:12:192:11:155:427:22
5:53
+0:16
24M
24.00 mi12:18:202:17:165:436:01
6:01
+0:08
40K
24.85 mi12:23:332:22:295:445:13
6:06
+0:05
25.2M
25.20 mi12:25:572:24:535:452:24
6:58
+0:52
Finish
26.22 mi12:32:282:31:245:476:31
6:24
-0:34

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

5:31 /mi

Average Pace

5:47 /mi

Slowest Pace

6:58 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

38:50

26% of race

Time at Steady Pace

1:26:24

57% of race

Time at Slower Pace

26:10

17% of race

Average Pace: 5:46 /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 mi10:19:1118:075:5018:07
5:50
#672
10K
6.21 mi10:36:4235:385:4417:31
5:38
#496
15K
9.32 mi10:54:1153:075:4217:29
5:38
#401
20K
12.43 mi11:11:331:10:295:4017:22
5:35
#339
Half
13.11 mi11:15:191:14:155:403:46
5:31
#334
25K
15.53 mi11:28:491:27:455:3913:30
5:34
#294
30K
18.64 mi11:46:521:45:485:4118:03
5:49
#273
20M
20.00 mi11:54:441:53:405:417:52
5:47
#260
21M
21.00 mi12:00:451:59:415:426:01
6:01
#241
35K
21.75 mi12:04:572:03:535:424:12
5:37
#235
23M
23.00 mi12:12:192:11:155:427:22
5:53
#222
24M
24.00 mi12:18:202:17:165:436:01
6:01
#231
40K
24.85 mi12:23:332:22:295:445:13
6:06
#232
25.2M
25.20 mi12:25:572:24:535:452:24
6:58
#238
Finish
26.22 mi12:32:282:31:245:476:31
6:24
#256
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi672625625276(Top 1.0%)248(Top 2%)248(Top 4%)
10K6.21 mi3.10 mi496+176458+167458+167339(Top 1%)310(Top 2%)310(Top 5%)
15K9.32 mi3.11 mi401+95370+88370+88276(Top 1.0%)248(Top 2%)248(Top 4%)
20K12.43 mi3.11 mi339+62310+60310+60189(Top 0.7%)166(Top 1%)166(Top 3%)
Half13.11 mi0.68 mi334+5305+5305+5210(Top 0.7%)188(Top 1%)188(Top 3%)
25K15.53 mi2.42 mi294+40266+39266+39174(Top 0.6%)151(Top 0.9%)151(Top 3%)
30K18.64 mi3.11 mi273+21247+19247+19255(Top 0.9%)233(Top 1%)233(Top 4%)
20M20.00 mi1.36 mi260+13236+11236+11176(Top 0.6%)160(Top 1.0%)160(Top 3%)
21M21.00 mi1.00 mi241+19218+18218+18130(Top 0.5%)122(Top 0.8%)122(Top 2%)
35K21.75 mi0.75 mi235+6213+5213+5189(Top 0.7%)172(Top 1%)172(Top 3%)
23M23.00 mi1.25 mi222+13199+14199+14220(Top 0.8%)204(Top 1%)204(Top 4%)
24M24.00 mi1.00 mi231-9209-10209-10602(Top 2%)562(Top 3%)562(Top 10%)
40K24.85 mi0.85 mi232-1210-1210-1537(Top 2%)500(Top 3%)500(Top 9%)
25.2M25.20 mi0.35 mi238-6216-6216-61308(Top 5%)1195(Top 7%)1195(Top 21%)
Finish26.22 mi1.02 mi256-18233-17233-172257(Top 8%)2060(Top 13%)2060(Top 37%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 1.0%
×21stories
+97ft-345ft

Overall

276

Males

248

M18-39

248

5K→10K

3.1 - 6.2 mi

Top 1%
×5stories
+79ft-138ft

Overall

339

Males

310

M18-39

310

10K→15K

6.2 - 9.3 mi

Top 1.0%
×3stories
+67ft-78ft

Overall

276

Males

248

M18-39

248

15K→20K

9.3 - 12.4 mi

Top 0.7%
×5stories
+106ft-86ft

Overall

189

Males

166

M18-39

166

20K→Half

12.4 - 13.1 mi

Top 0.7%
×2stories
+19ft-37ft

Overall

210

Males

188

M18-39

188

Half→25K

13.1 - 15.5 mi

Top 0.6%
×4stories
+66ft-88ft

Overall

174

Males

151

M18-39

151

25K→30K

15.5 - 18.6 mi

Top 0.9%
×9stories
+181ft-148ft

Overall

255

Males

233

M18-39

233

30K→20M

18.6 - 20.0 mi

Top 0.6%
×5stories
+64ft-50ft

Overall

176

Males

160

M18-39

160

20M→21M

20.0 - 21.0 mi

Top 0.5%
×8stories
+106ft-24ft

Overall

130

Males

122

M18-39

122

21M→35K

21.0 - 21.8 mi

Top 0.7%
×7stories
+17ft-86ft

Overall

189

Males

172

M18-39

172

35K→23M

21.8 - 23.0 mi

Top 0.8%
×5stories
+23ft-63ft

Overall

220

Males

204

M18-39

204

23M→24M

23.0 - 24.0 mi

Top 2%
×6stories
+12ft-82ft

Overall

602

Males

562

M18-39

562

24M→40K

24.0 - 24.9 mi

Top 2%
×1story
+6ft-20ft

Overall

537

Males

500

M18-39

500

40K→25.2M

24.9 - 25.2 mi

Top 5%
×1story
+13ft-16ft

Overall

1308

Males

1195

M18-39

1195

25.2M→Finish

25.2 - 26.2 mi

Top 8%
×2stories
+22ft-21ft

Overall

2257

Males

2060

M18-39

2060

Passing Analysis

Category:
Athletes Passed
468
Passed By
52
Net Change
+416
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#672
5K → 10K1771+176#672#496
10K → 15K961+95#496#401
15K → 20K620+62#401#339
20K → Half50+5#339#334
Half → 25K400+40#334#294
25K → 30K287+21#294#273
30K → 20M130+13#273#260
20M → 21M190+19#260#241
21M → 35K60+6#241#235
35K → 23M141+13#235#222
23M → 24M312-9#222#231
24M → 40K45-1#231#232
40K → 25.2M17-6#232#238
25.2M → Finish018-18#238#256
TOTALS46852+416
📊

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