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BOSTON MARATHON 2025

Stuart Zeltzer

Bib: 5887•M

OR

0:00
0:00
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Overall
#0 / 28404
Top 16%
Gender (Male)
#0 / 16105
Top 25%
Division (M18-39)
#0 / 5642
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:46
Rank: #5307
Start → 5K
20:46 | 6:41/mi
10K· 6.21 mi
41:27
Rank: #5112 (+195)
5K → 10K
20:41 | 6:39/mi
15K· 9.32 mi
1:02:19
Rank: #5121 (-9)
10K → 15K
20:52 | 6:43/mi
20K· 12.43 mi
1:23:14
Rank: #4970 (+151)
15K → 20K
20:55 | 6:44/mi
Half· 13.11 mi
1:27:46
Rank: #4957 (+13)
20K → Half
4:32 | 6:39/mi
25K· 15.53 mi
1:44:13
Rank: #4879 (+78)
Half → 25K
16:27 | 6:47/mi
30K· 18.64 mi
2:05:43
Rank: #4692 (+187)
25K → 30K
21:30 | 6:55/mi
20M
2:15:11
Rank: #4590 (+102)
30K → 20M
9:28 | 6:58/mi
21M
2:22:27
Rank: #4478 (+112)
20M → 21M
7:16 | 7:16/mi
35K· 21.75 mi
2:27:38
Rank: #4468 (+10)
21M → 35K
5:11 | 6:56/mi
23M
2:36:31
Rank: #4420 (+48)
35K → 23M
8:53 | 7:06/mi
24M
2:43:32
Rank: #4425 (-5)
23M → 24M
7:01 | 7:01/mi
40K· 24.85 mi
2:49:43
Rank: #4447 (-22)
24M → 40K
6:11 | 7:14/mi
25.2M
2:52:24
Rank: #4445 (+2)
40K → 25.2M
2:41 | 7:47/mi
Finish· 26.22 mi
2:59:20
Rank: #4468 (-23)
25.2M → Finish
6:56 | 6:48/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:27:46
Pace6:42 /mi
2nd Half
Distance13.11 mi
Time1:31:34
Pace6:59 /mi
📊Positive Split: 4.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:25:2420:466:4120:46
6:41
-
10K
6.21 mi10:46:0541:276:4020:41
6:39
-0:02
15K
9.32 mi11:06:571:02:196:4120:52
6:43
+0:04
20K
12.43 mi11:27:521:23:146:4220:55
6:44
+0:01
Half
13.11 mi11:32:241:27:466:424:32
6:39
-0:05
25K
15.53 mi11:48:511:44:136:4316:27
6:47
+0:08
30K
18.64 mi12:10:212:05:436:4521:30
6:55
+0:08
20M
20.00 mi12:19:492:15:116:469:28
6:58
+0:03
21M
21.00 mi12:27:052:22:276:477:16
7:16
+0:18
35K
21.75 mi12:32:162:27:386:475:11
6:56
-0:20
23M
23.00 mi12:41:092:36:316:488:53
7:06
+0:10
24M
24.00 mi12:48:102:43:326:497:01
7:01
-0:05
40K
24.85 mi12:54:212:49:436:506:11
7:14
+0:13
25.2M
25.20 mi12:57:022:52:246:502:41
7:47
+0:33
Finish
26.22 mi13:03:582:59:206:516:56
6:48
-0:59

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

6:39 /mi

Average Pace

6:51 /mi

Slowest Pace

7:47 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:56:39

99% of race

Time at Steady Pace

2:41

1% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:50 /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 mi10:25:2420:466:4120:46
6:41
#5307
10K
6.21 mi10:46:0541:276:4020:41
6:39
#5112
15K
9.32 mi11:06:571:02:196:4120:52
6:43
#5121
20K
12.43 mi11:27:521:23:146:4220:55
6:44
#4970
Half
13.11 mi11:32:241:27:466:424:32
6:39
#4957
25K
15.53 mi11:48:511:44:136:4316:27
6:47
#4879
30K
18.64 mi12:10:212:05:436:4521:30
6:55
#4692
20M
20.00 mi12:19:492:15:116:469:28
6:58
#4590
21M
21.00 mi12:27:052:22:276:477:16
7:16
#4478
35K
21.75 mi12:32:162:27:386:475:11
6:56
#4468
23M
23.00 mi12:41:092:36:316:488:53
7:06
#4420
24M
24.00 mi12:48:102:43:326:497:01
7:01
#4425
40K
24.85 mi12:54:212:49:436:506:11
7:14
#4447
25.2M
25.20 mi12:57:022:52:246:502:41
7:47
#4445
Finish
26.22 mi13:03:582:59:206:516:56
6:48
#4468
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi5307493849385244(Top 18%)4850(Top 30%)4850(Top 86%)
10K6.21 mi3.10 mi5112+1954764+1744764+1744946(Top 17%)4616(Top 29%)4616(Top 82%)
15K9.32 mi3.11 mi5121-94768-44768-45244(Top 18%)4850(Top 30%)4850(Top 86%)
20K12.43 mi3.11 mi4970+1514626+1424626+1424725(Top 17%)4379(Top 27%)4379(Top 78%)
Half13.11 mi0.68 mi4957+134614+124614+124839(Top 17%)4499(Top 28%)4499(Top 80%)
25K15.53 mi2.42 mi4879+784535+794535+794764(Top 17%)4387(Top 27%)4387(Top 78%)
30K18.64 mi3.11 mi4692+1874357+1784357+1784227(Top 15%)3881(Top 24%)3881(Top 69%)
20M20.00 mi1.36 mi4590+1024258+994258+993924(Top 14%)3607(Top 22%)3607(Top 64%)
21M21.00 mi1.00 mi4478+1124156+1024156+1023487(Top 12%)3199(Top 20%)3199(Top 57%)
35K21.75 mi0.75 mi4468+104142+144142+144924(Top 17%)4336(Top 27%)4336(Top 77%)
23M23.00 mi1.25 mi4420+484092+504092+504307(Top 15%)3819(Top 24%)3819(Top 68%)
24M24.00 mi1.00 mi4425-54083+94083+94726(Top 17%)4066(Top 25%)4066(Top 72%)
40K24.85 mi0.85 mi4447-224095-124095-125222(Top 18%)4363(Top 27%)4363(Top 77%)
25.2M25.20 mi0.35 mi4445+24084+114084+114786(Top 17%)3984(Top 25%)3984(Top 71%)
Finish26.22 mi1.02 mi4468-234101-174101-174524(Top 16%)3816(Top 24%)3816(Top 68%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 18%
×21stories
+97ft-345ft

Overall

5244

Males

4850

M18-39

4850

5K→10K

3.1 - 6.2 mi

Top 17%
×5stories
+79ft-138ft

Overall

4946

Males

4616

M18-39

4616

10K→15K

6.2 - 9.3 mi

Top 18%
×3stories
+67ft-78ft

Overall

5244

Males

4850

M18-39

4850

15K→20K

9.3 - 12.4 mi

Top 17%
×5stories
+106ft-86ft

Overall

4725

Males

4379

M18-39

4379

20K→Half

12.4 - 13.1 mi

Top 17%
×2stories
+19ft-37ft

Overall

4839

Males

4499

M18-39

4499

Half→25K

13.1 - 15.5 mi

Top 17%
×4stories
+66ft-88ft

Overall

4764

Males

4387

M18-39

4387

25K→30K

15.5 - 18.6 mi

Top 15%
×9stories
+181ft-148ft

Overall

4227

Males

3881

M18-39

3881

30K→20M

18.6 - 20.0 mi

Top 14%
×5stories
+64ft-50ft

Overall

3924

Males

3607

M18-39

3607

20M→21M

20.0 - 21.0 mi

Top 12%
×8stories
+106ft-24ft

Overall

3487

Males

3199

M18-39

3199

21M→35K

21.0 - 21.8 mi

Top 17%
×7stories
+17ft-86ft

Overall

4924

Males

4336

M18-39

4336

35K→23M

21.8 - 23.0 mi

Top 15%
×5stories
+23ft-63ft

Overall

4307

Males

3819

M18-39

3819

23M→24M

23.0 - 24.0 mi

Top 17%
×6stories
+12ft-82ft

Overall

4726

Males

4066

M18-39

4066

24M→40K

24.0 - 24.9 mi

Top 18%
×1story
+6ft-20ft

Overall

5222

Males

4363

M18-39

4363

40K→25.2M

24.9 - 25.2 mi

Top 17%
×1story
+13ft-16ft

Overall

4786

Males

3984

M18-39

3984

25.2M→Finish

25.2 - 26.2 mi

Top 16%
×2stories
+22ft-21ft

Overall

4524

Males

3816

M18-39

3816

Passing Analysis

Category:
Athletes Passed
1599
Passed By
760
Net Change
+839
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#5307
5K → 10K29095+195#5307#5112
10K → 15K135144-9#5112#5121
15K → 20K20251+151#5121#4970
20K → Half2613+13#4970#4957
Half → 25K13860+78#4957#4879
25K → 30K25669+187#4879#4692
30K → 20M12725+102#4692#4590
20M → 21M13624+112#4590#4478
21M → 35K4939+10#4478#4468
35K → 23M9042+48#4468#4420
23M → 24M4752-5#4420#4425
24M → 40K4365-22#4425#4447
40K → 25.2M2220+2#4447#4445
25.2M → Finish3861-23#4445#4468
TOTALS1599760+839
📊

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