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BOSTON MARATHON 2025

Eric Ghelfi

Bib: 738•M

UT

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
17:23
Rank: #298
Start → 5K
17:23 | 5:36/mi
10K· 6.21 mi
34:39
Rank: #272 (+26)
5K → 10K
17:16 | 5:33/mi
15K· 9.32 mi
52:06
Rank: #272
10K → 15K
17:27 | 5:37/mi
20K· 12.43 mi
1:09:39
Rank: #257 (+15)
15K → 20K
17:33 | 5:39/mi
Half· 13.11 mi
1:13:30
Rank: #259 (-2)
20K → Half
3:51 | 5:39/mi
25K· 15.53 mi
1:27:11
Rank: #250 (+9)
Half → 25K
13:41 | 5:39/mi
30K· 18.64 mi
1:45:22
Rank: #247 (+3)
25K → 30K
18:11 | 5:51/mi
20M
1:53:24
Rank: #241 (+6)
30K → 20M
8:02 | 5:55/mi
21M
1:59:40
Rank: #240 (+1)
20M → 21M
6:16 | 6:16/mi
35K· 21.75 mi
2:03:56
Rank: #238 (+2)
21M → 35K
4:16 | 5:42/mi
23M
2:11:31
Rank: #240 (-2)
35K → 23M
7:35 | 6:03/mi
24M
2:17:24
Rank: #236 (+4)
23M → 24M
5:53 | 5:53/mi
40K· 24.85 mi
2:22:44
Rank: #243 (-7)
24M → 40K
5:20 | 6:14/mi
25.2M
2:25:08
Rank: #246 (-3)
40K → 25.2M
2:24 | 6:58/mi
Finish· 26.22 mi
2:31:28
Rank: #257 (-11)
25.2M → Finish
6:20 | 6:13/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:13:30
Pace5:36 /mi
2nd Half
Distance13.11 mi
Time1:17:58
Pace5:57 /mi
📊Positive Split: 6.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:17:2917:235:3617:23
5:36
-
10K
6.21 mi10:34:4534:395:3517:16
5:33
-0:03
15K
9.32 mi10:52:1252:065:3517:27
5:37
+0:04
20K
12.43 mi11:09:451:09:395:3617:33
5:39
+0:02
Half
13.11 mi11:13:361:13:305:363:51
5:39
0:00
25K
15.53 mi11:27:171:27:115:3713:41
5:39
0:00
30K
18.64 mi11:45:281:45:225:3918:11
5:51
+0:12
20M
20.00 mi11:53:301:53:245:408:02
5:55
+0:04
21M
21.00 mi11:59:461:59:405:426:16
6:16
+0:21
35K
21.75 mi12:04:022:03:565:424:16
5:42
-0:34
23M
23.00 mi12:11:372:11:315:437:35
6:03
+0:21
24M
24.00 mi12:17:302:17:245:445:53
5:53
-0:10
40K
24.85 mi12:22:502:22:445:455:20
6:14
+0:21
25.2M
25.20 mi12:25:142:25:085:462:24
6:58
+0:44
Finish
26.22 mi12:31:342:31:285:476:20
6:13
-0:45

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

5:33 /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

1:27:11

58% of race

Time at Steady Pace

36:22

24% of race

Time at Slower Pace

27:55

18% of race

Average Pace: 5:47 /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 mi10:17:2917:235:3617:23
5:36
#298
10K
6.21 mi10:34:4534:395:3517:16
5:33
#272
15K
9.32 mi10:52:1252:065:3517:27
5:37
#272
20K
12.43 mi11:09:451:09:395:3617:33
5:39
#257
Half
13.11 mi11:13:361:13:305:363:51
5:39
#259
25K
15.53 mi11:27:171:27:115:3713:41
5:39
#250
30K
18.64 mi11:45:281:45:225:3918:11
5:51
#247
20M
20.00 mi11:53:301:53:245:408:02
5:55
#241
21M
21.00 mi11:59:461:59:405:426:16
6:16
#240
35K
21.75 mi12:04:022:03:565:424:16
5:42
#238
23M
23.00 mi12:11:372:11:315:437:35
6:03
#240
24M
24.00 mi12:17:302:17:245:445:53
5:53
#236
40K
24.85 mi12:22:502:22:445:455:20
6:14
#243
25.2M
25.20 mi12:25:142:25:085:462:24
6:58
#246
Finish
26.22 mi12:31:342:31:285:476:20
6:13
#257
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi298269269265(Top 0.9%)237(Top 1%)237(Top 4%)
10K6.21 mi3.10 mi272+26243+26243+26258(Top 0.9%)229(Top 1%)229(Top 4%)
15K9.32 mi3.11 mi272243243265(Top 0.9%)237(Top 1%)237(Top 4%)
20K12.43 mi3.11 mi257+15230+13230+13254(Top 0.9%)228(Top 1%)228(Top 4%)
Half13.11 mi0.68 mi259-2232-2232-2348(Top 1%)322(Top 2%)322(Top 6%)
25K15.53 mi2.42 mi250+9224+8224+8234(Top 0.8%)209(Top 1%)209(Top 4%)
30K18.64 mi3.11 mi247+3221+3221+3298(Top 1%)274(Top 2%)274(Top 5%)
20M20.00 mi1.36 mi241+6217+4217+4284(Top 1.0%)262(Top 2%)262(Top 5%)
21M21.00 mi1.00 mi240+1217217326(Top 1%)306(Top 2%)306(Top 5%)
35K21.75 mi0.75 mi238+2216+1216+1260(Top 0.9%)239(Top 1%)239(Top 4%)
23M23.00 mi1.25 mi240-2217-1217-1413(Top 1%)387(Top 2%)387(Top 7%)
24M24.00 mi1.00 mi236+4213+4213+4364(Top 1%)337(Top 2%)337(Top 6%)
40K24.85 mi0.85 mi243-7221-8221-8788(Top 3%)737(Top 5%)737(Top 13%)
25.2M25.20 mi0.35 mi246-3224-3224-31309(Top 5%)1196(Top 7%)1196(Top 21%)
Finish26.22 mi1.02 mi257-11234-10234-101539(Top 5%)1428(Top 9%)1428(Top 25%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 0.9%
×21stories
+97ft-345ft

Overall

265

Males

237

M18-39

237

5K→10K

3.1 - 6.2 mi

Top 0.9%
×5stories
+79ft-138ft

Overall

258

Males

229

M18-39

229

10K→15K

6.2 - 9.3 mi

Top 0.9%
×3stories
+67ft-78ft

Overall

265

Males

237

M18-39

237

15K→20K

9.3 - 12.4 mi

Top 0.9%
×5stories
+106ft-86ft

Overall

254

Males

228

M18-39

228

20K→Half

12.4 - 13.1 mi

Top 1%
×2stories
+19ft-37ft

Overall

348

Males

322

M18-39

322

Half→25K

13.1 - 15.5 mi

Top 0.8%
×4stories
+66ft-88ft

Overall

234

Males

209

M18-39

209

25K→30K

15.5 - 18.6 mi

Top 1%
×9stories
+181ft-148ft

Overall

298

Males

274

M18-39

274

30K→20M

18.6 - 20.0 mi

Top 1.0%
×5stories
+64ft-50ft

Overall

284

Males

262

M18-39

262

20M→21M

20.0 - 21.0 mi

Top 1%
×8stories
+106ft-24ft

Overall

326

Males

306

M18-39

306

21M→35K

21.0 - 21.8 mi

Top 0.9%
×7stories
+17ft-86ft

Overall

260

Males

239

M18-39

239

35K→23M

21.8 - 23.0 mi

Top 1%
×5stories
+23ft-63ft

Overall

413

Males

387

M18-39

387

23M→24M

23.0 - 24.0 mi

Top 1%
×6stories
+12ft-82ft

Overall

364

Males

337

M18-39

337

24M→40K

24.0 - 24.9 mi

Top 3%
×1story
+6ft-20ft

Overall

788

Males

737

M18-39

737

40K→25.2M

24.9 - 25.2 mi

Top 5%
×1story
+13ft-16ft

Overall

1309

Males

1196

M18-39

1196

25.2M→Finish

25.2 - 26.2 mi

Top 5%
×2stories
+22ft-21ft

Overall

1539

Males

1428

M18-39

1428

Passing Analysis

Category:
Athletes Passed
136
Passed By
95
Net Change
+41
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#298
5K → 10K326+26#298#272
10K → 15K990#272#272
15K → 20K216+15#272#257
20K → Half02-2#257#259
Half → 25K167+9#259#250
25K → 30K1714+3#250#247
30K → 20M126+6#247#241
20M → 21M98+1#241#240
21M → 35K31+2#240#238
35K → 23M46-2#238#240
23M → 24M84+4#240#236
24M → 40K310-7#236#243
40K → 25.2M14-3#243#246
25.2M → Finish112-11#246#257
TOTALS13695+41
📊

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