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BOSTON MARATHON 2025

Ian Fonville

Bib: 32413•M

TX

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 42%
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
24:39
Rank: #16020
Start → 5K
24:39 | 7:56/mi
10K· 6.21 mi
47:59
Rank: #14073 (+1947)
5K → 10K
23:20 | 7:31/mi
15K· 9.32 mi
1:10:27
Rank: #12496 (+1577)
10K → 15K
22:28 | 7:14/mi
20K· 12.43 mi
1:32:59
Rank: #11483 (+1013)
15K → 20K
22:32 | 7:15/mi
Half· 13.11 mi
1:37:55
Rank: #11390 (+93)
20K → Half
4:56 | 7:14/mi
25K· 15.53 mi
1:56:10
Rank: #11157 (+233)
Half → 25K
18:15 | 7:32/mi
30K· 18.64 mi
2:20:59
Rank: #11143 (+14)
25K → 30K
24:49 | 7:59/mi
20M
2:32:02
Rank: #11096 (+47)
30K → 20M
11:03 | 8:08/mi
21M
2:40:29
Rank: #11012 (+84)
20M → 21M
8:27 | 8:27/mi
35K· 21.75 mi
2:46:28
Rank: #11027 (-15)
21M → 35K
5:59 | 8:00/mi
23M
2:57:32
Rank: #11293 (-266)
35K → 23M
11:04 | 8:50/mi
24M
3:06:37
Rank: #11635 (-342)
23M → 24M
9:05 | 9:05/mi
40K· 24.85 mi
3:14:10
Rank: #11787 (-152)
24M → 40K
7:33 | 8:50/mi
25.2M
3:17:26
Rank: #11838 (-51)
40K → 25.2M
3:16 | 9:28/mi
Finish· 26.22 mi
3:25:59
Rank: #11983 (-145)
25.2M → Finish
8:33 | 8:23/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:37:55
Pace7:28 /mi
2nd Half
Distance13.11 mi
Time1:48:04
Pace8:15 /mi
📊Positive Split: 10.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:48:5124:397:5624:39
7:56
-
10K
6.21 mi12:12:1147:597:4323:20
7:31
-0:25
15K
9.32 mi12:34:391:10:277:3422:28
7:14
-0:17
20K
12.43 mi12:57:111:32:597:2922:32
7:15
+0:01
Half
13.11 mi13:02:071:37:557:284:56
7:14
-0:01
25K
15.53 mi13:20:221:56:107:2918:15
7:32
+0:18
30K
18.64 mi13:45:112:20:597:3424:49
7:59
+0:27
20M
20.00 mi13:56:142:32:027:3611:03
8:08
+0:09
21M
21.00 mi14:04:412:40:297:398:27
8:27
+0:19
35K
21.75 mi14:10:402:46:287:395:59
8:00
-0:27
23M
23.00 mi14:21:442:57:327:4311:04
8:50
+0:50
24M
24.00 mi14:30:493:06:377:479:05
9:05
+0:15
40K
24.85 mi14:38:223:14:107:497:33
8:50
-0:15
25.2M
25.20 mi14:41:383:17:267:503:16
9:28
+0:38
Finish
26.22 mi14:50:113:25:597:528:33
8:23
-1:05

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

7:14 /mi

Average Pace

7:52 /mi

Slowest Pace

9:28 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:31:31

44% of race

Time at Steady Pace

1:06:30

32% of race

Time at Slower Pace

47:58

23% of race

Average Pace: 7:51 /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 mi11:48:5124:397:5624:39
7:56
#16020
10K
6.21 mi12:12:1147:597:4323:20
7:31
#14073
15K
9.32 mi12:34:391:10:277:3422:28
7:14
#12496
20K
12.43 mi12:57:111:32:597:2922:32
7:15
#11483
Half
13.11 mi13:02:071:37:557:284:56
7:14
#11390
25K
15.53 mi13:20:221:56:107:2918:15
7:32
#11157
30K
18.64 mi13:45:112:20:597:3424:49
7:59
#11143
20M
20.00 mi13:56:142:32:027:3611:03
8:08
#11096
21M
21.00 mi14:04:412:40:297:398:27
8:27
#11012
35K
21.75 mi14:10:402:46:287:395:59
8:00
#11027
23M
23.00 mi14:21:442:57:327:4311:04
8:50
#11293
24M
24.00 mi14:30:493:06:377:479:05
9:05
#11635
40K
24.85 mi14:38:223:14:107:497:33
8:50
#11787
25.2M
25.20 mi14:41:383:17:267:503:16
9:28
#11838
Finish
26.22 mi14:50:113:25:597:528:33
8:23
#11983
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi1602010807108079382(Top 33%)7761(Top 48%)7761(Top 138%)
10K6.21 mi3.10 mi14073+194710048+75910048+75912181(Top 43%)9230(Top 57%)9230(Top 164%)
15K9.32 mi3.11 mi12496+15779358+6909358+6909382(Top 33%)7761(Top 48%)7761(Top 138%)
20K12.43 mi3.11 mi11483+10138852+5068852+5068648(Top 30%)7254(Top 45%)7254(Top 129%)
Half13.11 mi0.68 mi11390+938806+468806+469371(Top 33%)7714(Top 48%)7714(Top 137%)
25K15.53 mi2.42 mi11157+2338654+1528654+15210191(Top 36%)7986(Top 50%)7986(Top 142%)
30K18.64 mi3.11 mi11143+148574+808574+8011282(Top 40%)8334(Top 52%)8334(Top 148%)
20M20.00 mi1.36 mi11096+478514+608514+6011319(Top 40%)8198(Top 51%)8198(Top 145%)
21M21.00 mi1.00 mi11012+848432+828432+8210152(Top 36%)7449(Top 46%)7449(Top 132%)
35K21.75 mi0.75 mi11027-158409+238409+2312226(Top 43%)8431(Top 52%)8431(Top 149%)
23M23.00 mi1.25 mi11293-2668495-868495-8615299(Top 54%)9761(Top 61%)9761(Top 173%)
24M24.00 mi1.00 mi11635-3428614-1198614-11917759(Top 63%)10801(Top 67%)10801(Top 191%)
40K24.85 mi0.85 mi11787-1528664-508664-5015321(Top 54%)9569(Top 59%)9569(Top 170%)
25.2M25.20 mi0.35 mi11838-518669-58669-514371(Top 51%)9100(Top 57%)9100(Top 161%)
Finish26.22 mi1.02 mi11983-1458713-448713-4415471(Top 54%)9686(Top 60%)9686(Top 172%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 33%
×21stories
+97ft-345ft

Overall

9382

Males

7761

M18-39

7761

5K→10K

3.1 - 6.2 mi

Top 43%
×5stories
+79ft-138ft

Overall

12181

Males

9230

M18-39

9230

10K→15K

6.2 - 9.3 mi

Top 33%
×3stories
+67ft-78ft

Overall

9382

Males

7761

M18-39

7761

15K→20K

9.3 - 12.4 mi

Top 30%
×5stories
+106ft-86ft

Overall

8648

Males

7254

M18-39

7254

20K→Half

12.4 - 13.1 mi

Top 33%
×2stories
+19ft-37ft

Overall

9371

Males

7714

M18-39

7714

Half→25K

13.1 - 15.5 mi

Top 36%
×4stories
+66ft-88ft

Overall

10191

Males

7986

M18-39

7986

25K→30K

15.5 - 18.6 mi

Top 40%
×9stories
+181ft-148ft

Overall

11282

Males

8334

M18-39

8334

30K→20M

18.6 - 20.0 mi

Top 40%
×5stories
+64ft-50ft

Overall

11319

Males

8198

M18-39

8198

20M→21M

20.0 - 21.0 mi

Top 36%
×8stories
+106ft-24ft

Overall

10152

Males

7449

M18-39

7449

21M→35K

21.0 - 21.8 mi

Top 43%
×7stories
+17ft-86ft

Overall

12226

Males

8431

M18-39

8431

35K→23M

21.8 - 23.0 mi

Top 54%
×5stories
+23ft-63ft

Overall

15299

Males

9761

M18-39

9761

23M→24M

23.0 - 24.0 mi

Top 63%
×6stories
+12ft-82ft

Overall

17759

Males

10801

M18-39

10801

24M→40K

24.0 - 24.9 mi

Top 54%
×1story
+6ft-20ft

Overall

15321

Males

9569

M18-39

9569

40K→25.2M

24.9 - 25.2 mi

Top 51%
×1story
+13ft-16ft

Overall

14371

Males

9100

M18-39

9100

25.2M→Finish

25.2 - 26.2 mi

Top 54%
×2stories
+22ft-21ft

Overall

15471

Males

9686

M18-39

9686

Passing Analysis

Category:
Athletes Passed
5672
Passed By
1635
Net Change
+4037
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#16020
5K → 10K196114+1947#16020#14073
10K → 15K15770+1577#14073#12496
15K → 20K10141+1013#12496#11483
20K → Half952+93#11483#11390
Half → 25K28148+233#11390#11157
25K → 30K239225+14#11157#11143
30K → 20M13285+47#11143#11096
20M → 21M14056+84#11096#11012
21M → 35K5772-15#11012#11027
35K → 23M50316-266#11027#11293
23M → 24M30372-342#11293#11635
24M → 40K37189-152#11635#11787
40K → 25.2M3081-51#11787#11838
25.2M → Finish29174-145#11838#11983
TOTALS56721635+4037
📊

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