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BOSTON MARATHON 2025

John Haser

Bib: 6770•M

LA

0:00
0:00
/ mi
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Overall
#0 / 28404
Gender (Male)
#0 / 16105
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
23:42
Rank: #13351
Start → 5K
23:42 | 7:38/mi
10K· 6.21 mi
48:10
Rank: #14332 (-981)
5K → 10K
24:28 | 7:53/mi
15K· 9.32 mi
1:12:54
Rank: #14816 (-484)
10K → 15K
24:44 | 7:58/mi
20K· 12.43 mi
1:37:34
Rank: #14672 (+144)
15K → 20K
24:40 | 7:56/mi
Half· 13.11 mi
1:42:50
Rank: #14612 (+60)
20K → Half
5:16 | 7:43/mi
25K· 15.53 mi
2:02:15
Rank: #14459 (+153)
Half → 25K
19:25 | 8:00/mi
30K· 18.64 mi
2:28:48
Rank: #14558 (-99)
25K → 30K
26:33 | 8:33/mi
20M
2:40:51
Rank: #14686 (-128)
30K → 20M
12:03 | 8:52/mi
21M
2:50:19
Rank: #14742 (-56)
20M → 21M
9:28 | 9:28/mi
35K· 21.75 mi
2:56:50
Rank: #14790 (-48)
21M → 35K
6:31 | 8:43/mi
23M
3:09:15
Rank: #15246 (-456)
35K → 23M
12:25 | 9:55/mi
24M
3:19:13
Rank: #15586 (-340)
23M → 24M
9:58 | 9:58/mi
40K· 24.85 mi
3:28:39
Rank: #16046 (-460)
24M → 40K
9:26 | 11:02/mi
25.2M
3:32:34
Rank: #16175 (-129)
40K → 25.2M
3:55 | 11:21/mi
Finish· 26.22 mi
3:42:53
Rank: #16594 (-419)
25.2M → Finish
10:19 | 10:07/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:42:50
Pace7:51 /mi
2nd Half
Distance13.11 mi
Time2:00:03
Pace9:09 /mi
📊Positive Split: 16.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:31:3823:427:3823:42
7:38
-
10K
6.21 mi10:56:0648:107:4524:28
7:53
+0:15
15K
9.32 mi11:20:501:12:547:4924:44
7:58
+0:05
20K
12.43 mi11:45:301:37:347:5124:40
7:56
-0:02
Half
13.11 mi11:50:461:42:507:515:16
7:43
-0:13
25K
15.53 mi12:10:112:02:157:5219:25
8:00
+0:17
30K
18.64 mi12:36:442:28:487:5926:33
8:33
+0:33
20M
20.00 mi12:48:472:40:518:0312:03
8:52
+0:19
21M
21.00 mi12:58:152:50:198:079:28
9:28
+0:36
35K
21.75 mi13:04:462:56:508:086:31
8:43
-0:45
23M
23.00 mi13:17:113:09:158:1412:25
9:55
+1:12
24M
24.00 mi13:27:093:19:138:189:58
9:58
+0:03
40K
24.85 mi13:36:353:28:398:249:26
11:02
+1:04
25.2M
25.20 mi13:40:303:32:348:263:55
11:21
+0:19
Finish
26.22 mi13:50:493:42:538:3010:19
10:07
-1:14

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

7:38 /mi

Average Pace

8:30 /mi

Slowest Pace

11:21 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:02:15

55% of race

Time at Steady Pace

45:07

20% of race

Time at Slower Pace

55:31

25% of race

Average Pace: 8:30 /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 mi10:31:3823:427:3823:42
7:38
#13351
10K
6.21 mi10:56:0648:107:4524:28
7:53
#14332
15K
9.32 mi11:20:501:12:547:4924:44
7:58
#14816
20K
12.43 mi11:45:301:37:347:5124:40
7:56
#14672
Half
13.11 mi11:50:461:42:507:515:16
7:43
#14612
25K
15.53 mi12:10:112:02:157:5219:25
8:00
#14459
30K
18.64 mi12:36:442:28:487:5926:33
8:33
#14558
20M
20.00 mi12:48:472:40:518:0312:03
8:52
#14686
21M
21.00 mi12:58:152:50:198:079:28
9:28
#14742
35K
21.75 mi13:04:462:56:508:086:31
8:43
#14790
23M
23.00 mi13:17:113:09:158:1412:25
9:55
#15246
24M
24.00 mi13:27:093:19:138:189:58
9:58
#15586
40K
24.85 mi13:36:353:28:398:249:26
11:02
#16046
25.2M
25.20 mi13:40:303:32:348:263:55
11:21
#16175
Finish
26.22 mi13:50:493:42:538:3010:19
10:07
#16594
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi133519799979915735(Top 55%)10697(Top 66%)10697(Top 190%)
10K6.21 mi3.10 mi14332-98110153-35410153-35415477(Top 54%)10610(Top 66%)10610(Top 188%)
15K9.32 mi3.11 mi14816-48410330-17710330-17715735(Top 55%)10697(Top 66%)10697(Top 190%)
20K12.43 mi3.11 mi14672+14410242+8810242+8814441(Top 51%)10066(Top 63%)10066(Top 178%)
Half13.11 mi0.68 mi14612+6010216+2610216+2613538(Top 48%)9726(Top 60%)9726(Top 172%)
25K15.53 mi2.42 mi14459+15310105+11110105+11113955(Top 49%)9737(Top 60%)9737(Top 173%)
30K18.64 mi3.11 mi14558-9910095+1010095+1015046(Top 53%)10078(Top 63%)10078(Top 179%)
20M20.00 mi1.36 mi14686-12810123-2810123-2816032(Top 56%)10382(Top 64%)10382(Top 184%)
21M21.00 mi1.00 mi14742-5610128-510128-515916(Top 56%)10211(Top 63%)10211(Top 181%)
35K21.75 mi0.75 mi14790-48101281012816729(Top 59%)10503(Top 65%)10503(Top 186%)
23M23.00 mi1.25 mi15246-45610282-15410282-15420210(Top 71%)11999(Top 75%)11999(Top 213%)
24M24.00 mi1.00 mi15586-34010403-12110403-12121241(Top 75%)12457(Top 77%)12457(Top 221%)
40K24.85 mi0.85 mi16046-46010571-16810571-16823205(Top 82%)13332(Top 83%)13332(Top 236%)
25.2M25.20 mi0.35 mi16175-12910622-5110622-5121633(Top 76%)12590(Top 78%)12590(Top 223%)
Finish26.22 mi1.02 mi16594-41910767-14510767-14523276(Top 82%)13403(Top 83%)13403(Top 238%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 55%
×21stories
+97ft-345ft

Overall

15735

Males

10697

M18-39

10697

5K→10K

3.1 - 6.2 mi

Top 54%
×5stories
+79ft-138ft

Overall

15477

Males

10610

M18-39

10610

10K→15K

6.2 - 9.3 mi

Top 55%
×3stories
+67ft-78ft

Overall

15735

Males

10697

M18-39

10697

15K→20K

9.3 - 12.4 mi

Top 51%
×5stories
+106ft-86ft

Overall

14441

Males

10066

M18-39

10066

20K→Half

12.4 - 13.1 mi

Top 48%
×2stories
+19ft-37ft

Overall

13538

Males

9726

M18-39

9726

Half→25K

13.1 - 15.5 mi

Top 49%
×4stories
+66ft-88ft

Overall

13955

Males

9737

M18-39

9737

25K→30K

15.5 - 18.6 mi

Top 53%
×9stories
+181ft-148ft

Overall

15046

Males

10078

M18-39

10078

30K→20M

18.6 - 20.0 mi

Top 56%
×5stories
+64ft-50ft

Overall

16032

Males

10382

M18-39

10382

20M→21M

20.0 - 21.0 mi

Top 56%
×8stories
+106ft-24ft

Overall

15916

Males

10211

M18-39

10211

21M→35K

21.0 - 21.8 mi

Top 59%
×7stories
+17ft-86ft

Overall

16729

Males

10503

M18-39

10503

35K→23M

21.8 - 23.0 mi

Top 71%
×5stories
+23ft-63ft

Overall

20210

Males

11999

M18-39

11999

23M→24M

23.0 - 24.0 mi

Top 75%
×6stories
+12ft-82ft

Overall

21241

Males

12457

M18-39

12457

24M→40K

24.0 - 24.9 mi

Top 82%
×1story
+6ft-20ft

Overall

23205

Males

13332

M18-39

13332

40K→25.2M

24.9 - 25.2 mi

Top 76%
×1story
+13ft-16ft

Overall

21633

Males

12590

M18-39

12590

25.2M→Finish

25.2 - 26.2 mi

Top 82%
×2stories
+22ft-21ft

Overall

23276

Males

13403

M18-39

13403

Passing Analysis

Category:
Athletes Passed
1257
Passed By
4500
Net Change
-3243
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#13351
5K → 10K681049-981#13351#14332
10K → 15K76560-484#14332#14816
15K → 20K270126+144#14816#14672
20K → Half7010+60#14672#14612
Half → 25K24491+153#14612#14459
25K → 30K213312-99#14459#14558
30K → 20M100228-128#14558#14686
20M → 21M87143-56#14686#14742
21M → 35K4896-48#14742#14790
35K → 23M32488-456#14790#15246
23M → 24M12352-340#15246#15586
24M → 40K13473-460#15586#16046
40K → 25.2M6135-129#16046#16175
25.2M → Finish18437-419#16175#16594
TOTALS12574500-3243
📊

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