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BOSTON MARATHON 2025

Joseph Feng

Bib: 3949•M

NY

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 4%
Gender (Male)
#0 / 16105
Top 6%
Division (M18-39)
#0 / 5642
Top 16%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
18:49
Rank: #1251
Start → 5K
18:49 | 6:03/mi
10K· 6.21 mi
37:32
Rank: #1193 (+58)
5K → 10K
18:43 | 6:01/mi
15K· 9.32 mi
56:25
Rank: #1212 (-19)
10K → 15K
18:53 | 6:05/mi
20K· 12.43 mi
1:15:34
Rank: #1238 (-26)
15K → 20K
19:09 | 6:10/mi
Half· 13.11 mi
1:19:43
Rank: #1249 (-11)
20K → Half
4:09 | 6:05/mi
25K· 15.53 mi
1:34:41
Rank: #1261 (-12)
Half → 25K
14:58 | 6:10/mi
30K· 18.64 mi
1:54:14
Rank: #1219 (+42)
25K → 30K
19:33 | 6:18/mi
20M
2:03:00
Rank: #1228 (-9)
30K → 20M
8:46 | 6:27/mi
21M
2:09:43
Rank: #1199 (+29)
20M → 21M
6:43 | 6:43/mi
35K· 21.75 mi
2:14:23
Rank: #1191 (+8)
21M → 35K
4:40 | 6:14/mi
23M
2:22:28
Rank: #1152 (+39)
35K → 23M
8:05 | 6:27/mi
24M
2:28:46
Rank: #1141 (+11)
23M → 24M
6:18 | 6:18/mi
40K· 24.85 mi
2:34:18
Rank: #1135 (+6)
24M → 40K
5:32 | 6:28/mi
25.2M
2:36:40
Rank: #1135
40K → 25.2M
2:22 | 6:52/mi
Finish· 26.22 mi
2:42:54
Rank: #1110 (+25)
25.2M → Finish
6:14 | 6:07/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:19:43
Pace6:05 /mi
2nd Half
Distance13.11 mi
Time1:23:11
Pace6:21 /mi
📊Positive Split: 4.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:21:3518:496:0318:49
6:03
-
10K
6.21 mi10:40:1837:326:0218:43
6:01
-0:02
15K
9.32 mi10:59:1156:256:0318:53
6:05
+0:04
20K
12.43 mi11:18:201:15:346:0519:09
6:10
+0:05
Half
13.11 mi11:22:291:19:436:054:09
6:05
-0:05
25K
15.53 mi11:37:271:34:416:0614:58
6:10
+0:05
30K
18.64 mi11:57:001:54:146:0819:33
6:18
+0:08
20M
20.00 mi12:05:462:03:006:098:46
6:27
+0:09
21M
21.00 mi12:12:292:09:436:116:43
6:43
+0:16
35K
21.75 mi12:17:092:14:236:114:40
6:14
-0:29
23M
23.00 mi12:25:142:22:286:128:05
6:27
+0:13
24M
24.00 mi12:31:322:28:466:126:18
6:18
-0:09
40K
24.85 mi12:37:042:34:186:125:32
6:28
+0:10
25.2M
25.20 mi12:39:262:36:406:132:22
6:52
+0:24
Finish
26.22 mi12:45:402:42:546:136:14
6:07
-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

6:01 /mi

Average Pace

6:13 /mi

Slowest Pace

6:52 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:33:49

94% of race

Time at Steady Pace

9:05

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:13 /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 mi10:21:3518:496:0318:49
6:03
#1251
10K
6.21 mi10:40:1837:326:0218:43
6:01
#1193
15K
9.32 mi10:59:1156:256:0318:53
6:05
#1212
20K
12.43 mi11:18:201:15:346:0519:09
6:10
#1238
Half
13.11 mi11:22:291:19:436:054:09
6:05
#1249
25K
15.53 mi11:37:271:34:416:0614:58
6:10
#1261
30K
18.64 mi11:57:001:54:146:0819:33
6:18
#1219
20M
20.00 mi12:05:462:03:006:098:46
6:27
#1228
21M
21.00 mi12:12:292:09:436:116:43
6:43
#1199
35K
21.75 mi12:17:092:14:236:114:40
6:14
#1191
23M
23.00 mi12:25:142:22:286:128:05
6:27
#1152
24M
24.00 mi12:31:322:28:466:126:18
6:18
#1141
40K
24.85 mi12:37:042:34:186:125:32
6:28
#1135
25.2M
25.20 mi12:39:262:36:406:132:22
6:52
#1135
Finish
26.22 mi12:45:402:42:546:136:14
6:07
#1110
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi1251118611861293(Top 5%)1228(Top 8%)1228(Top 22%)
10K6.21 mi3.10 mi1193+581130+561130+561170(Top 4%)1108(Top 7%)1108(Top 20%)
15K9.32 mi3.11 mi1212-191149-191149-191293(Top 5%)1228(Top 8%)1228(Top 22%)
20K12.43 mi3.11 mi1238-261173-241173-241422(Top 5%)1348(Top 8%)1348(Top 24%)
Half13.11 mi0.68 mi1249-111181-81181-81451(Top 5%)1379(Top 9%)1379(Top 24%)
25K15.53 mi2.42 mi1261-121192-111192-111343(Top 5%)1272(Top 8%)1272(Top 23%)
30K18.64 mi3.11 mi1219+421151+411151+411178(Top 4%)1112(Top 7%)1112(Top 20%)
20M20.00 mi1.36 mi1228-91160-91160-91420(Top 5%)1342(Top 8%)1342(Top 24%)
21M21.00 mi1.00 mi1199+291130+301130+301243(Top 4%)1173(Top 7%)1173(Top 21%)
35K21.75 mi0.75 mi1191+81121+91121+91341(Top 5%)1268(Top 8%)1268(Top 22%)
23M23.00 mi1.25 mi1152+391085+361085+361308(Top 5%)1229(Top 8%)1229(Top 22%)
24M24.00 mi1.00 mi1141+111075+101075+101302(Top 5%)1217(Top 8%)1217(Top 22%)
40K24.85 mi0.85 mi1135+61069+61069+61495(Top 5%)1382(Top 9%)1382(Top 24%)
25.2M25.20 mi0.35 mi1135106910691113(Top 4%)1023(Top 6%)1023(Top 18%)
Finish26.22 mi1.02 mi1110+251046+231046+231243(Top 4%)1161(Top 7%)1161(Top 21%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 5%
×21stories
+97ft-345ft

Overall

1293

Males

1228

M18-39

1228

5K→10K

3.1 - 6.2 mi

Top 4%
×5stories
+79ft-138ft

Overall

1170

Males

1108

M18-39

1108

10K→15K

6.2 - 9.3 mi

Top 5%
×3stories
+67ft-78ft

Overall

1293

Males

1228

M18-39

1228

15K→20K

9.3 - 12.4 mi

Top 5%
×5stories
+106ft-86ft

Overall

1422

Males

1348

M18-39

1348

20K→Half

12.4 - 13.1 mi

Top 5%
×2stories
+19ft-37ft

Overall

1451

Males

1379

M18-39

1379

Half→25K

13.1 - 15.5 mi

Top 5%
×4stories
+66ft-88ft

Overall

1343

Males

1272

M18-39

1272

25K→30K

15.5 - 18.6 mi

Top 4%
×9stories
+181ft-148ft

Overall

1178

Males

1112

M18-39

1112

30K→20M

18.6 - 20.0 mi

Top 5%
×5stories
+64ft-50ft

Overall

1420

Males

1342

M18-39

1342

20M→21M

20.0 - 21.0 mi

Top 4%
×8stories
+106ft-24ft

Overall

1243

Males

1173

M18-39

1173

21M→35K

21.0 - 21.8 mi

Top 5%
×7stories
+17ft-86ft

Overall

1341

Males

1268

M18-39

1268

35K→23M

21.8 - 23.0 mi

Top 5%
×5stories
+23ft-63ft

Overall

1308

Males

1229

M18-39

1229

23M→24M

23.0 - 24.0 mi

Top 5%
×6stories
+12ft-82ft

Overall

1302

Males

1217

M18-39

1217

24M→40K

24.0 - 24.9 mi

Top 5%
×1story
+6ft-20ft

Overall

1495

Males

1382

M18-39

1382

40K→25.2M

24.9 - 25.2 mi

Top 4%
×1story
+13ft-16ft

Overall

1113

Males

1023

M18-39

1023

25.2M→Finish

25.2 - 26.2 mi

Top 4%
×2stories
+22ft-21ft

Overall

1243

Males

1161

M18-39

1161

Passing Analysis

Category:
Athletes Passed
492
Passed By
351
Net Change
+141
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#1251
5K → 10K9537+58#1251#1193
10K → 15K3251-19#1193#1212
15K → 20K3157-26#1212#1238
20K → Half516-11#1238#1249
Half → 25K3244-12#1249#1261
25K → 30K7129+42#1261#1219
30K → 20M3140-9#1219#1228
20M → 21M4314+29#1228#1199
21M → 35K168+8#1199#1191
35K → 23M5112+39#1191#1152
23M → 24M2615+11#1152#1141
24M → 40K1913+6#1141#1135
40K → 25.2M440#1135#1135
25.2M → Finish3611+25#1135#1110
TOTALS492351+141
📊

Passing Visuals

Category:

📈Position Graph

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🎨Heatmap Timeline

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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