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BOSTON MARATHON 2025

Jonah Spector

Bib: 3608•M

MA

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 14%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
19:17
Rank: #1892
Start → 5K
19:17 | 6:12/mi
10K· 6.21 mi
38:43
Rank: #2027 (-135)
5K → 10K
19:26 | 6:15/mi
15K· 9.32 mi
57:54
Rank: #1899 (+128)
10K → 15K
19:11 | 6:10/mi
20K· 12.43 mi
1:17:23
Rank: #1883 (+16)
15K → 20K
19:29 | 6:16/mi
Half· 13.11 mi
1:21:34
Rank: #1870 (+13)
20K → Half
4:11 | 6:08/mi
25K· 15.53 mi
1:36:40
Rank: #1801 (+69)
Half → 25K
15:06 | 6:14/mi
30K· 18.64 mi
1:55:11
Rank: #1400 (+401)
25K → 30K
18:31 | 5:58/mi
20M
2:03:18
Rank: #1274 (+126)
30K → 20M
8:07 | 5:58/mi
21M
2:09:37
Rank: #1187 (+87)
20M → 21M
6:19 | 6:19/mi
35K· 21.75 mi
2:13:58
Rank: #1118 (+69)
21M → 35K
4:21 | 5:49/mi
23M
2:21:44
Rank: #1045 (+73)
35K → 23M
7:46 | 6:12/mi
24M
2:27:56
Rank: #1033 (+12)
23M → 24M
6:12 | 6:12/mi
40K· 24.85 mi
2:33:24
Rank: #1022 (+11)
24M → 40K
5:28 | 6:24/mi
25.2M
2:35:46
Rank: #1018 (+4)
40K → 25.2M
2:22 | 6:52/mi
Finish· 26.22 mi
2:42:04
Rank: #1008 (+10)
25.2M → Finish
6:18 | 6:11/mi

The Course

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Half Splits

1st Half· via Half
Distance13.11 mi
Time1:21:34
Pace6:13 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:20:30
Pace6:08 /mi
📊Negative Split: 1.3% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:22:2819:176:1219:17
6:12
-
10K
6.21 mi10:41:5438:436:1419:26
6:15
+0:03
15K
9.32 mi11:01:0557:546:1319:11
6:10
-0:05
20K
12.43 mi11:20:341:17:236:1419:29
6:16
+0:06
Half
13.11 mi11:24:451:21:346:134:11
6:08
-0:08
25K
15.53 mi11:39:511:36:406:1315:06
6:14
+0:06
30K
18.64 mi11:58:221:55:116:1118:31
5:58
-0:16
20M
20.00 mi12:06:292:03:186:108:07
5:58
0:00
21M
21.00 mi12:12:482:09:376:106:19
6:19
+0:21
35K
21.75 mi12:17:092:13:586:104:21
5:49
-0:30
23M
23.00 mi12:24:552:21:446:107:46
6:12
+0:23
24M
24.00 mi12:31:072:27:566:106:12
6:12
0:00
40K
24.85 mi12:36:352:33:246:105:28
6:24
+0:12
25.2M
25.20 mi12:38:572:35:466:112:22
6:52
+0:28
Finish
26.22 mi12:45:152:42:046:116:18
6:11
-0:41

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

5:49 /mi

Average Pace

6:11 /mi

Slowest Pace

6:52 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:34:14

95% of race

Time at Steady Pace

5:28

3% of race

Time at Slower Pace

2:22

1% of race

Average Pace: 6:11 /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 mi10:22:2819:176:1219:17
6:12
#1892
10K
6.21 mi10:41:5438:436:1419:26
6:15
#2027
15K
9.32 mi11:01:0557:546:1319:11
6:10
#1899
20K
12.43 mi11:20:341:17:236:1419:29
6:16
#1883
Half
13.11 mi11:24:451:21:346:134:11
6:08
#1870
25K
15.53 mi11:39:511:36:406:1315:06
6:14
#1801
30K
18.64 mi11:58:221:55:116:1118:31
5:58
#1400
20M
20.00 mi12:06:292:03:186:108:07
5:58
#1274
21M
21.00 mi12:12:482:09:376:106:19
6:19
#1187
35K
21.75 mi12:17:092:13:586:104:21
5:49
#1118
23M
23.00 mi12:24:552:21:446:107:46
6:12
#1045
24M
24.00 mi12:31:072:27:566:106:12
6:12
#1033
40K
24.85 mi12:36:352:33:246:105:28
6:24
#1022
25.2M
25.20 mi12:38:572:35:466:112:22
6:52
#1018
Finish
26.22 mi12:45:152:42:046:116:18
6:11
#1008
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi1892179817981704(Top 6%)1617(Top 10%)1617(Top 29%)
10K6.21 mi3.10 mi2027-1351932-1341932-1342159(Top 8%)2062(Top 13%)2062(Top 37%)
15K9.32 mi3.11 mi1899+1281805+1271805+1271704(Top 6%)1617(Top 10%)1617(Top 29%)
20K12.43 mi3.11 mi1883+161794+111794+111879(Top 7%)1789(Top 11%)1789(Top 32%)
Half13.11 mi0.68 mi1870+131781+131781+131614(Top 6%)1533(Top 10%)1533(Top 27%)
25K15.53 mi2.42 mi1801+691713+681713+681557(Top 5%)1478(Top 9%)1478(Top 26%)
30K18.64 mi3.11 mi1400+4011324+3891324+389447(Top 2%)414(Top 3%)414(Top 7%)
20M20.00 mi1.36 mi1274+1261202+1221202+122352(Top 1%)328(Top 2%)328(Top 6%)
21M21.00 mi1.00 mi1187+871118+841118+84391(Top 1%)368(Top 2%)368(Top 7%)
35K21.75 mi0.75 mi1118+691054+641054+64405(Top 1%)379(Top 2%)379(Top 7%)
23M23.00 mi1.25 mi1045+73984+70984+70684(Top 2%)645(Top 4%)645(Top 11%)
24M24.00 mi1.00 mi1033+12972+12972+121016(Top 4%)955(Top 6%)955(Top 17%)
40K24.85 mi0.85 mi1022+11961+11961+111228(Top 4%)1141(Top 7%)1141(Top 20%)
25.2M25.20 mi0.35 mi1018+4957+4957+41107(Top 4%)1017(Top 6%)1017(Top 18%)
Finish26.22 mi1.02 mi1008+10947+10947+101452(Top 5%)1350(Top 8%)1350(Top 24%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 6%
×21stories
+97ft-345ft

Overall

1704

Males

1617

M18-39

1617

5K→10K

3.1 - 6.2 mi

Top 8%
×5stories
+79ft-138ft

Overall

2159

Males

2062

M18-39

2062

10K→15K

6.2 - 9.3 mi

Top 6%
×3stories
+67ft-78ft

Overall

1704

Males

1617

M18-39

1617

15K→20K

9.3 - 12.4 mi

Top 7%
×5stories
+106ft-86ft

Overall

1879

Males

1789

M18-39

1789

20K→Half

12.4 - 13.1 mi

Top 6%
×2stories
+19ft-37ft

Overall

1614

Males

1533

M18-39

1533

Half→25K

13.1 - 15.5 mi

Top 5%
×4stories
+66ft-88ft

Overall

1557

Males

1478

M18-39

1478

25K→30K

15.5 - 18.6 mi

Top 2%
×9stories
+181ft-148ft

Overall

447

Males

414

M18-39

414

30K→20M

18.6 - 20.0 mi

Top 1%
×5stories
+64ft-50ft

Overall

352

Males

328

M18-39

328

20M→21M

20.0 - 21.0 mi

Top 1%
×8stories
+106ft-24ft

Overall

391

Males

368

M18-39

368

21M→35K

21.0 - 21.8 mi

Top 1%
×7stories
+17ft-86ft

Overall

405

Males

379

M18-39

379

35K→23M

21.8 - 23.0 mi

Top 2%
×5stories
+23ft-63ft

Overall

684

Males

645

M18-39

645

23M→24M

23.0 - 24.0 mi

Top 4%
×6stories
+12ft-82ft

Overall

1016

Males

955

M18-39

955

24M→40K

24.0 - 24.9 mi

Top 4%
×1story
+6ft-20ft

Overall

1228

Males

1141

M18-39

1141

40K→25.2M

24.9 - 25.2 mi

Top 4%
×1story
+13ft-16ft

Overall

1107

Males

1017

M18-39

1017

25.2M→Finish

25.2 - 26.2 mi

Top 5%
×2stories
+22ft-21ft

Overall

1452

Males

1350

M18-39

1350

Passing Analysis

Category:
Athletes Passed
1208
Passed By
324
Net Change
+884
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#1892
5K → 10K66201-135#1892#2027
10K → 15K13810+128#2027#1899
15K → 20K7256+16#1899#1883
20K → Half185+13#1883#1870
Half → 25K7910+69#1870#1801
25K → 30K4010+401#1801#1400
30K → 20M1260+126#1400#1274
20M → 21M870+87#1274#1187
21M → 35K690+69#1187#1118
35K → 23M818+73#1118#1045
23M → 24M2210+12#1045#1033
24M → 40K2413+11#1033#1022
40K → 25.2M95+4#1022#1018
25.2M → Finish166+10#1018#1008
TOTALS1208324+884
📊

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