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BOSTON MARATHON 2025

David Saltzman

Bib: 2399•M

MS

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 13%
Gender (Male)
#0 / 16105
Top 22%
Division (M18-39)
#0 / 5642
Top 46%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
19:47
Rank: #2872
Start → 5K
19:47 | 6:22/mi
10K· 6.21 mi
39:39
Rank: #2912 (-40)
5K → 10K
19:52 | 6:24/mi
15K· 9.32 mi
59:45
Rank: #3076 (-164)
10K → 15K
20:06 | 6:28/mi
20K· 12.43 mi
1:20:26
Rank: #3308 (-232)
15K → 20K
20:41 | 6:39/mi
Half· 13.11 mi
1:25:00
Rank: #3397 (-89)
20K → Half
4:34 | 6:42/mi
25K· 15.53 mi
1:41:10
Rank: #3464 (-67)
Half → 25K
16:10 | 6:40/mi
30K· 18.64 mi
2:02:28
Rank: #3452 (+12)
25K → 30K
21:18 | 6:51/mi
20M
2:11:56
Rank: #3453 (-1)
30K → 20M
9:28 | 6:58/mi
21M
2:19:05
Rank: #3384 (+69)
20M → 21M
7:09 | 7:09/mi
35K· 21.75 mi
2:24:25
Rank: #3454 (-70)
21M → 35K
5:20 | 7:08/mi
23M
2:33:43
Rank: #3580 (-126)
35K → 23M
9:18 | 7:26/mi
24M
2:41:03
Rank: #3690 (-110)
23M → 24M
7:20 | 7:20/mi
40K· 24.85 mi
2:47:20
Rank: #3751 (-61)
24M → 40K
6:17 | 7:21/mi
25.2M
2:50:04
Rank: #3768 (-17)
40K → 25.2M
2:44 | 7:56/mi
Finish· 26.22 mi
2:57:15
Rank: #3809 (-41)
25.2M → Finish
7:11 | 7:03/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:25:00
Pace6:29 /mi
2nd Half
Distance13.11 mi
Time1:32:15
Pace7:02 /mi
📊Positive Split: 8.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:20:4519:476:2219:47
6:22
-
10K
6.21 mi10:40:3739:396:2319:52
6:24
+0:02
15K
9.32 mi11:00:4359:456:2520:06
6:28
+0:04
20K
12.43 mi11:21:241:20:266:2820:41
6:39
+0:11
Half
13.11 mi11:25:581:25:006:294:34
6:42
+0:03
25K
15.53 mi11:42:081:41:106:3116:10
6:40
-0:02
30K
18.64 mi12:03:262:02:286:3421:18
6:51
+0:11
20M
20.00 mi12:12:542:11:566:369:28
6:58
+0:07
21M
21.00 mi12:20:032:19:056:377:09
7:09
+0:11
35K
21.75 mi12:25:232:24:256:385:20
7:08
-0:01
23M
23.00 mi12:34:412:33:436:419:18
7:26
+0:18
24M
24.00 mi12:42:012:41:036:437:20
7:20
-0:06
40K
24.85 mi12:48:182:47:206:446:17
7:21
+0:01
25.2M
25.20 mi12:51:022:50:046:452:44
7:56
+0:35
Finish
26.22 mi12:58:132:57:156:467:11
7:03
-0:53

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

6:22 /mi

Average Pace

6:46 /mi

Slowest Pace

7:56 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:41:10

57% of race

Time at Steady Pace

50:26

28% of race

Time at Slower Pace

25:39

14% of race

Average Pace: 6:46 /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 mi10:20:4519:476:2219:47
6:22
#2872
10K
6.21 mi10:40:3739:396:2319:52
6:24
#2912
15K
9.32 mi11:00:4359:456:2520:06
6:28
#3076
20K
12.43 mi11:21:241:20:266:2820:41
6:39
#3308
Half
13.11 mi11:25:581:25:006:294:34
6:42
#3397
25K
15.53 mi11:42:081:41:106:3116:10
6:40
#3464
30K
18.64 mi12:03:262:02:286:3421:18
6:51
#3452
20M
20.00 mi12:12:542:11:566:369:28
6:58
#3453
21M
21.00 mi12:20:032:19:056:377:09
7:09
#3384
35K
21.75 mi12:25:232:24:256:385:20
7:08
#3454
23M
23.00 mi12:34:412:33:436:419:18
7:26
#3580
24M
24.00 mi12:42:012:41:036:437:20
7:20
#3690
40K
24.85 mi12:48:182:47:206:446:17
7:21
#3751
25.2M
25.20 mi12:51:022:50:046:452:44
7:56
#3768
Finish
26.22 mi12:58:132:57:156:467:11
7:03
#3809
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi2872273327333368(Top 12%)3195(Top 20%)3195(Top 57%)
10K6.21 mi3.10 mi2912-402775-422775-423003(Top 11%)2859(Top 18%)2859(Top 51%)
15K9.32 mi3.11 mi3076-1642929-1542929-1543368(Top 12%)3195(Top 20%)3195(Top 57%)
20K12.43 mi3.11 mi3308-2323149-2203149-2204064(Top 14%)3814(Top 24%)3814(Top 68%)
Half13.11 mi0.68 mi3397-893224-753224-755140(Top 18%)4735(Top 29%)4735(Top 84%)
25K15.53 mi2.42 mi3464-673285-613285-613895(Top 14%)3642(Top 23%)3642(Top 65%)
30K18.64 mi3.11 mi3452+123266+193266+193772(Top 13%)3486(Top 22%)3486(Top 62%)
20M20.00 mi1.36 mi3453-13265+13265+13879(Top 14%)3562(Top 22%)3562(Top 63%)
21M21.00 mi1.00 mi3384+693198+673198+672891(Top 10%)2677(Top 17%)2677(Top 47%)
35K21.75 mi0.75 mi3454-703260-623260-626092(Top 21%)5114(Top 32%)5114(Top 91%)
23M23.00 mi1.25 mi3580-1263362-1023362-1026171(Top 22%)5064(Top 31%)5064(Top 90%)
24M24.00 mi1.00 mi3690-1103448-863448-866559(Top 23%)5253(Top 33%)5253(Top 93%)
40K24.85 mi0.85 mi3751-613499-513499-515875(Top 21%)4762(Top 30%)4762(Top 84%)
25.2M25.20 mi0.35 mi3768-173508-93508-95471(Top 19%)4389(Top 27%)4389(Top 78%)
Finish26.22 mi1.02 mi3809-413533-253533-256017(Top 21%)4725(Top 29%)4725(Top 84%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 12%
×21stories
+97ft-345ft

Overall

3368

Males

3195

M18-39

3195

5K→10K

3.1 - 6.2 mi

Top 11%
×5stories
+79ft-138ft

Overall

3003

Males

2859

M18-39

2859

10K→15K

6.2 - 9.3 mi

Top 12%
×3stories
+67ft-78ft

Overall

3368

Males

3195

M18-39

3195

15K→20K

9.3 - 12.4 mi

Top 14%
×5stories
+106ft-86ft

Overall

4064

Males

3814

M18-39

3814

20K→Half

12.4 - 13.1 mi

Top 18%
×2stories
+19ft-37ft

Overall

5140

Males

4735

M18-39

4735

Half→25K

13.1 - 15.5 mi

Top 14%
×4stories
+66ft-88ft

Overall

3895

Males

3642

M18-39

3642

25K→30K

15.5 - 18.6 mi

Top 13%
×9stories
+181ft-148ft

Overall

3772

Males

3486

M18-39

3486

30K→20M

18.6 - 20.0 mi

Top 14%
×5stories
+64ft-50ft

Overall

3879

Males

3562

M18-39

3562

20M→21M

20.0 - 21.0 mi

Top 10%
×8stories
+106ft-24ft

Overall

2891

Males

2677

M18-39

2677

21M→35K

21.0 - 21.8 mi

Top 21%
×7stories
+17ft-86ft

Overall

6092

Males

5114

M18-39

5114

35K→23M

21.8 - 23.0 mi

Top 22%
×5stories
+23ft-63ft

Overall

6171

Males

5064

M18-39

5064

23M→24M

23.0 - 24.0 mi

Top 23%
×6stories
+12ft-82ft

Overall

6559

Males

5253

M18-39

5253

24M→40K

24.0 - 24.9 mi

Top 21%
×1story
+6ft-20ft

Overall

5875

Males

4762

M18-39

4762

40K→25.2M

24.9 - 25.2 mi

Top 19%
×1story
+13ft-16ft

Overall

5471

Males

4389

M18-39

4389

25.2M→Finish

25.2 - 26.2 mi

Top 21%
×2stories
+22ft-21ft

Overall

6017

Males

4725

M18-39

4725

Passing Analysis

Category:
Athletes Passed
677
Passed By
1614
Net Change
-937
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#2872
5K → 10K113153-40#2872#2912
10K → 15K37201-164#2912#3076
15K → 20K39271-232#3076#3308
20K → Half291-89#3308#3397
Half → 25K51118-67#3397#3464
25K → 30K118106+12#3464#3452
30K → 20M6364-1#3452#3453
20M → 21M9122+69#3453#3384
21M → 35K1787-70#3384#3454
35K → 23M35161-126#3454#3580
23M → 24M24134-110#3580#3690
24M → 40K3091-61#3690#3751
40K → 25.2M1734-17#3751#3768
25.2M → Finish4081-41#3768#3809
TOTALS6771614-937
📊

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