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BOSTON MARATHON 2025

John Fritz

Bib: 28125•M

MA

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
31:17
Rank: #25750
Start → 5K
10:04/mi
31:17 split
10K· 6.21 mi
1:01:51
Rank: #25321 (+429)
5K → 10K
9:50/mi
30:34 split
15K· 9.32 mi
1:32:51
Rank: #25188 (+133)
10K → 15K
9:59/mi
31:00 split
20K· 12.43 mi
2:05:55
Rank: #25299 (-111)
15K → 20K
10:39/mi
33:04 split
Half· 13.11 mi
2:13:15
Rank: #25345 (-46)
20K → Half
10:45/mi
7:20 split
25K· 15.53 mi
2:41:37
Rank: #25522 (-177)
Half → 25K
11:42/mi
28:22 split
30K· 18.64 mi
3:20:08
Rank: #25654 (-132)
25K → 30K
12:24/mi
38:31 split
20M
3:36:13
Rank: #25597 (+57)
30K → 20M
11:50/mi
16:05 split
21M
3:49:31
Rank: #25594 (+3)
20M → 21M
13:18/mi
13:18 split
35K· 21.75 mi
3:58:14
Rank: #25592 (+2)
21M → 35K
11:39/mi
8:43 split
23M
4:12:24
Rank: #25524 (+68)
35K → 23M
11:19/mi
14:10 split
24M
4:23:09
Rank: #25446 (+78)
23M → 24M
10:45/mi
10:45 split
40K· 24.85 mi
4:33:05
Rank: #25408 (+38)
24M → 40K
11:37/mi
9:56 split
25.2M
4:37:18
Rank: #25395 (+13)
40K → 25.2M
12:14/mi
4:13 split
Finish· 26.22 mi
4:47:29
Rank: #25331 (+64)
25.2M → Finish
10:00/mi
10:11 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:13:15
Pace10:10 /mi
2nd Half
Distance13.11 mi
Time2:34:14
Pace11:46 /mi
📊Positive Split: 15.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:48:5231:1710:0431:17
10:04
-
10K
6.21 mi12:19:261:01:519:5730:34
9:50
-0:14
15K
9.32 mi12:50:261:32:519:5831:00
9:59
+0:09
20K
12.43 mi13:23:302:05:5510:0833:04
10:39
+0:40
Half
13.11 mi13:30:502:13:1510:107:20
10:45
+0:06
25K
15.53 mi13:59:122:41:3710:2428:22
11:42
+0:57
30K
18.64 mi14:37:433:20:0810:4438:31
12:24
+0:42
20M
20.00 mi14:53:483:36:1310:4916:05
11:50
-0:34
21M
21.00 mi15:07:063:49:3110:5613:18
13:18
+1:28
35K
21.75 mi15:15:493:58:1410:578:43
11:39
-1:39
23M
23.00 mi15:29:594:12:2410:5814:10
11:19
-0:20
24M
24.00 mi15:40:444:23:0910:5810:45
10:45
-0:34
40K
24.85 mi15:50:404:33:0510:599:56
11:37
+0:52
25.2M
25.20 mi15:54:534:37:1811:004:13
12:14
+0:37
Finish
26.22 mi16:05:044:47:2910:5810:11
10:00
-2:14

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

9:50 /mi

Average Pace

10:58 /mi

Slowest Pace

13:18 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:34:11

54% of race

Time at Steady Pace

1:01:11

21% of race

Time at Slower Pace

1:12:07

25% of race

Average Pace: 10:58 /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 mi11:48:5231:1710:0431:17
10:04
#25750
10K
6.21 mi12:19:261:01:519:5730:34
9:50
#25321
15K
9.32 mi12:50:261:32:519:5831:00
9:59
#25188
20K
12.43 mi13:23:302:05:5510:0833:04
10:39
#25299
Half
13.11 mi13:30:502:13:1510:107:20
10:45
#25345
25K
15.53 mi13:59:122:41:3710:2428:22
11:42
#25522
30K
18.64 mi14:37:433:20:0810:4438:31
12:24
#25654
20M
20.00 mi14:53:483:36:1310:4916:05
11:50
#25597
21M
21.00 mi15:07:063:49:3110:5613:18
13:18
#25594
35K
21.75 mi15:15:493:58:1410:578:43
11:39
#25592
23M
23.00 mi15:29:594:12:2410:5814:10
11:19
#25524
24M
24.00 mi15:40:444:23:0910:5810:45
10:45
#25446
40K
24.85 mi15:50:404:33:0510:599:56
11:37
#25408
25.2M
25.20 mi15:54:534:37:1811:004:13
12:14
#25395
Finish
26.22 mi16:05:044:47:2910:5810:11
10:00
#25331
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi25750150681506824950(Top 88%)14700(Top 91%)14700(Top 261%)
10K6.21 mi3.10 mi25321+42914850+21814850+21824957(Top 88%)14683(Top 91%)14683(Top 260%)
15K9.32 mi3.11 mi25188+13314797+5314797+5324950(Top 88%)14700(Top 91%)14700(Top 261%)
20K12.43 mi3.11 mi25299-11114830-3314830-3325441(Top 90%)14876(Top 92%)14876(Top 264%)
Half13.11 mi0.68 mi25345-4614851-2114851-2126167(Top 92%)15183(Top 94%)15183(Top 269%)
25K15.53 mi2.42 mi25522-17714925-7414925-7426097(Top 92%)15116(Top 94%)15116(Top 268%)
30K18.64 mi3.11 mi25654-13214942-1714942-1726062(Top 92%)15021(Top 93%)15021(Top 266%)
20M20.00 mi1.36 mi25597+5714909+3314909+3325032(Top 88%)14478(Top 90%)14478(Top 257%)
21M21.00 mi1.00 mi25594+314897+1214897+1225435(Top 90%)14592(Top 91%)14592(Top 259%)
35K21.75 mi0.75 mi25592+214887+1014887+1025334(Top 89%)14512(Top 90%)14512(Top 257%)
23M23.00 mi1.25 mi25524+6814841+4614841+4623910(Top 84%)13796(Top 86%)13796(Top 245%)
24M24.00 mi1.00 mi25446+7814796+4514796+4523449(Top 83%)13536(Top 84%)13536(Top 240%)
40K24.85 mi0.85 mi25408+3814772+2414772+2424332(Top 86%)13931(Top 87%)13931(Top 247%)
25.2M25.20 mi0.35 mi25395+1314764+814764+823665(Top 83%)13605(Top 84%)13605(Top 241%)
Finish26.22 mi1.02 mi25331+6414730+3414730+3422923(Top 81%)13239(Top 82%)13239(Top 235%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 88%
×21stories
+97ft-345ft

Overall

24950

Males

14700

M18-39

14700

5K→10K

3.1 - 6.2 mi

Top 88%
×5stories
+79ft-138ft

Overall

24957

Males

14683

M18-39

14683

10K→15K

6.2 - 9.3 mi

Top 88%
×3stories
+67ft-78ft

Overall

24950

Males

14700

M18-39

14700

15K→20K

9.3 - 12.4 mi

Top 90%
×5stories
+106ft-86ft

Overall

25441

Males

14876

M18-39

14876

20K→Half

12.4 - 13.1 mi

Top 92%
×2stories
+19ft-37ft

Overall

26167

Males

15183

M18-39

15183

Half→25K

13.1 - 15.5 mi

Top 92%
×4stories
+66ft-88ft

Overall

26097

Males

15116

M18-39

15116

25K→30K

15.5 - 18.6 mi

Top 92%
×9stories
+181ft-148ft

Overall

26062

Males

15021

M18-39

15021

30K→20M

18.6 - 20.0 mi

Top 88%
×5stories
+64ft-50ft

Overall

25032

Males

14478

M18-39

14478

20M→21M

20.0 - 21.0 mi

Top 90%
×8stories
+106ft-24ft

Overall

25435

Males

14592

M18-39

14592

21M→35K

21.0 - 21.8 mi

Top 89%
×7stories
+17ft-86ft

Overall

25334

Males

14512

M18-39

14512

35K→23M

21.8 - 23.0 mi

Top 84%
×5stories
+23ft-63ft

Overall

23910

Males

13796

M18-39

13796

23M→24M

23.0 - 24.0 mi

Top 83%
×6stories
+12ft-82ft

Overall

23449

Males

13536

M18-39

13536

24M→40K

24.0 - 24.9 mi

Top 86%
×1story
+6ft-20ft

Overall

24332

Males

13931

M18-39

13931

40K→25.2M

24.9 - 25.2 mi

Top 83%
×1story
+13ft-16ft

Overall

23665

Males

13605

M18-39

13605

25.2M→Finish

25.2 - 26.2 mi

Top 81%
×2stories
+22ft-21ft

Overall

22923

Males

13239

M18-39

13239

Passing Analysis

Category:
Athletes Passed
1384
Passed By
965
Net Change
+419
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#25750
5K → 10K47243+429#25750#25321
10K → 15K20774+133#25321#25188
15K → 20K92203-111#25188#25299
20K → Half1258-46#25299#25345
Half → 25K50227-177#25345#25522
25K → 30K81213-132#25522#25654
30K → 20M7518+57#25654#25597
20M → 21M4643+3#25597#25594
21M → 35K3331+2#25594#25592
35K → 23M8315+68#25592#25524
23M → 24M857+78#25524#25446
24M → 40K5719+38#25446#25408
40K → 25.2M229+13#25408#25395
25.2M → Finish695+64#25395#25331
TOTALS1384965+419
📊

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