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BOSTON MARATHON 2025

Jan Ganzon

Bib: 6911•M

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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
23:06
Rank: #11658
Start → 5K
23:06 | 7:26/mi
10K· 6.21 mi
46:14
Rank: #11620 (+38)
5K → 10K
23:08 | 7:27/mi
15K· 9.32 mi
1:11:12
Rank: #13214 (-1594)
10K → 15K
24:58 | 8:02/mi
20K· 12.43 mi
1:36:20
Rank: #13814 (-600)
15K → 20K
25:08 | 8:05/mi
Half· 13.11 mi
1:41:51
Rank: #13992 (-178)
20K → Half
5:31 | 8:05/mi
25K· 15.53 mi
2:01:42
Rank: #14168 (-176)
Half → 25K
19:51 | 8:11/mi
30K· 18.64 mi
2:27:51
Rank: #14130 (+38)
25K → 30K
26:09 | 8:25/mi
20M
2:40:00
Rank: #14321 (-191)
30K → 20M
12:09 | 8:56/mi
21M
2:48:54
Rank: #14206 (+115)
20M → 21M
8:54 | 8:54/mi
35K· 21.75 mi
2:55:51
Rank: #14473 (-267)
21M → 35K
6:57 | 9:17/mi
23M
3:07:01
Rank: #14529 (-56)
35K → 23M
11:10 | 8:55/mi
24M
3:15:59
Rank: #14653 (-124)
23M → 24M
8:58 | 8:58/mi
40K· 24.85 mi
3:23:23
Rank: #14612 (+41)
24M → 40K
7:24 | 8:39/mi
25.2M
3:26:56
Rank: #14677 (-65)
40K → 25.2M
3:33 | 10:18/mi
Finish· 26.22 mi
3:35:04
Rank: #14586 (+91)
25.2M → Finish
8:08 | 7:59/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:41:51
Pace7:46 /mi
2nd Half
Distance13.11 mi
Time1:53:13
Pace8:38 /mi
📊Positive Split: 11.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:29:4323:067:2623:06
7:26
-
10K
6.21 mi10:52:5146:147:2623:08
7:27
+0:01
15K
9.32 mi11:17:491:11:127:3824:58
8:02
+0:35
20K
12.43 mi11:42:571:36:207:4525:08
8:05
+0:03
Half
13.11 mi11:48:281:41:517:465:31
8:05
0:00
25K
15.53 mi12:08:192:01:427:5019:51
8:11
+0:06
30K
18.64 mi12:34:282:27:517:5626:09
8:25
+0:14
20M
20.00 mi12:46:372:40:008:0012:09
8:56
+0:31
21M
21.00 mi12:55:312:48:548:038:54
8:54
-0:02
35K
21.75 mi13:02:282:55:518:056:57
9:17
+0:23
23M
23.00 mi13:13:383:07:018:0811:10
8:55
-0:22
24M
24.00 mi13:22:363:15:598:108:58
8:58
+0:03
40K
24.85 mi13:30:003:23:238:117:24
8:39
-0:19
25.2M
25.20 mi13:33:333:26:568:133:33
10:18
+1:39
Finish
26.22 mi13:41:413:35:048:138:08
7:59
-2:19

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

7:26 /mi

Average Pace

8:13 /mi

Slowest Pace

10:18 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:19:20

37% of race

Time at Steady Pace

1:24:03

39% of race

Time at Slower Pace

51:41

24% of race

Average Pace: 8:12 /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 mi10:29:4323:067:2623:06
7:26
#11658
10K
6.21 mi10:52:5146:147:2623:08
7:27
#11620
15K
9.32 mi11:17:491:11:127:3824:58
8:02
#13214
20K
12.43 mi11:42:571:36:207:4525:08
8:05
#13814
Half
13.11 mi11:48:281:41:517:465:31
8:05
#13992
25K
15.53 mi12:08:192:01:427:5019:51
8:11
#14168
30K
18.64 mi12:34:282:27:517:5626:09
8:25
#14130
20M
20.00 mi12:46:372:40:008:0012:09
8:56
#14321
21M
21.00 mi12:55:312:48:548:038:54
8:54
#14206
35K
21.75 mi13:02:282:55:518:056:57
9:17
#14473
23M
23.00 mi13:13:383:07:018:0811:10
8:55
#14529
24M
24.00 mi13:22:363:15:598:108:58
8:58
#14653
40K
24.85 mi13:30:003:23:238:117:24
8:39
#14612
25.2M
25.20 mi13:33:333:26:568:133:33
10:18
#14677
Finish
26.22 mi13:41:413:35:048:138:08
7:59
#14586
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi116589023902316307(Top 57%)10937(Top 68%)10937(Top 194%)
10K6.21 mi3.10 mi11620+388981+428981+4211596(Top 41%)8956(Top 56%)8956(Top 159%)
15K9.32 mi3.11 mi13214-15949654-6739654-67316307(Top 57%)10937(Top 68%)10937(Top 194%)
20K12.43 mi3.11 mi13814-6009868-2149868-21415564(Top 55%)10571(Top 66%)10571(Top 187%)
Half13.11 mi0.68 mi13992-1789953-859953-8516477(Top 58%)10956(Top 68%)10956(Top 194%)
25K15.53 mi2.42 mi14168-1769988-359988-3515210(Top 54%)10310(Top 64%)10310(Top 183%)
30K18.64 mi3.11 mi14130+389910+789910+7814231(Top 50%)9696(Top 60%)9696(Top 172%)
20M20.00 mi1.36 mi14321-1919968-589968-5816454(Top 58%)10556(Top 66%)10556(Top 187%)
21M21.00 mi1.00 mi14206+1159891+779891+7712912(Top 45%)8812(Top 55%)8812(Top 156%)
35K21.75 mi0.75 mi14473-2679995-1049995-10419507(Top 69%)11726(Top 73%)11726(Top 208%)
23M23.00 mi1.25 mi14529-569986+99986+915769(Top 56%)9968(Top 62%)9968(Top 177%)
24M24.00 mi1.00 mi14653-12410008-2210008-2217164(Top 60%)10535(Top 65%)10535(Top 187%)
40K24.85 mi0.85 mi14612+419964+449964+4414359(Top 51%)9158(Top 57%)9158(Top 162%)
25.2M25.20 mi0.35 mi14677-659978-149978-1418207(Top 64%)10900(Top 68%)10900(Top 193%)
Finish26.22 mi1.02 mi14586+919900+789900+7812748(Top 45%)8411(Top 52%)8411(Top 149%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 57%
×21stories
+97ft-345ft

Overall

16307

Males

10937

M18-39

10937

5K→10K

3.1 - 6.2 mi

Top 41%
×5stories
+79ft-138ft

Overall

11596

Males

8956

M18-39

8956

10K→15K

6.2 - 9.3 mi

Top 57%
×3stories
+67ft-78ft

Overall

16307

Males

10937

M18-39

10937

15K→20K

9.3 - 12.4 mi

Top 55%
×5stories
+106ft-86ft

Overall

15564

Males

10571

M18-39

10571

20K→Half

12.4 - 13.1 mi

Top 58%
×2stories
+19ft-37ft

Overall

16477

Males

10956

M18-39

10956

Half→25K

13.1 - 15.5 mi

Top 54%
×4stories
+66ft-88ft

Overall

15210

Males

10310

M18-39

10310

25K→30K

15.5 - 18.6 mi

Top 50%
×9stories
+181ft-148ft

Overall

14231

Males

9696

M18-39

9696

30K→20M

18.6 - 20.0 mi

Top 58%
×5stories
+64ft-50ft

Overall

16454

Males

10556

M18-39

10556

20M→21M

20.0 - 21.0 mi

Top 45%
×8stories
+106ft-24ft

Overall

12912

Males

8812

M18-39

8812

21M→35K

21.0 - 21.8 mi

Top 69%
×7stories
+17ft-86ft

Overall

19507

Males

11726

M18-39

11726

35K→23M

21.8 - 23.0 mi

Top 56%
×5stories
+23ft-63ft

Overall

15769

Males

9968

M18-39

9968

23M→24M

23.0 - 24.0 mi

Top 60%
×6stories
+12ft-82ft

Overall

17164

Males

10535

M18-39

10535

24M→40K

24.0 - 24.9 mi

Top 51%
×1story
+6ft-20ft

Overall

14359

Males

9158

M18-39

9158

40K→25.2M

24.9 - 25.2 mi

Top 64%
×1story
+13ft-16ft

Overall

18207

Males

10900

M18-39

10900

25.2M→Finish

25.2 - 26.2 mi

Top 45%
×2stories
+22ft-21ft

Overall

12748

Males

8411

M18-39

8411

Passing Analysis

Category:
Athletes Passed
1366
Passed By
4294
Net Change
-2928
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#11658
5K → 10K262224+38#11658#11620
10K → 15K161610-1594#11620#13214
15K → 20K84684-600#13214#13814
20K → Half5183-178#13814#13992
Half → 25K118294-176#13992#14168
25K → 30K278240+38#14168#14130
30K → 20M68259-191#14130#14321
20M → 21M16954+115#14321#14206
21M → 35K17284-267#14206#14473
35K → 23M81137-56#14473#14529
23M → 24M38162-124#14529#14653
24M → 40K9352+41#14653#14612
40K → 25.2M1883-65#14612#14677
25.2M → Finish11928+91#14677#14586
TOTALS13664294-2928
📊

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