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BOSTON MARATHON 2025

Ben Iacoi

Bib: 27795•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
30:49
Rank: #25397
Start → 5K
30:49 | 9:55/mi
10K· 6.21 mi
1:01:37
Rank: #25225 (+172)
5K → 10K
30:48 | 9:55/mi
15K· 9.32 mi
1:33:29
Rank: #25361 (-136)
10K → 15K
31:52 | 10:15/mi
20K· 12.43 mi
2:05:22
Rank: #25219 (+142)
15K → 20K
31:53 | 10:16/mi
Half· 13.11 mi
2:12:43
Rank: #25266 (-47)
20K → Half
7:21 | 10:46/mi
25K· 15.53 mi
2:40:00
Rank: #25322 (-56)
Half → 25K
27:17 | 11:15/mi
30K· 18.64 mi
3:18:43
Rank: #25529 (-207)
25K → 30K
38:43 | 12:28/mi
20M
3:35:30
Rank: #25536 (-7)
30K → 20M
16:47 | 12:21/mi
21M
3:48:30
Rank: #25517 (+19)
20M → 21M
13:00 | 13:00/mi
35K· 21.75 mi
3:57:55
Rank: #25566 (-49)
21M → 35K
9:25 | 12:35/mi
23M
4:13:48
Rank: #25646 (-80)
35K → 23M
15:53 | 12:41/mi
24M
4:26:25
Rank: #25697 (-51)
23M → 24M
12:37 | 12:37/mi
40K· 24.85 mi
4:37:25
Rank: #25732 (-35)
24M → 40K
11:00 | 12:52/mi
25.2M
4:42:07
Rank: #25744 (-12)
40K → 25.2M
4:42 | 13:38/mi
Finish· 26.22 mi
4:54:10
Rank: #25797 (-53)
25.2M → Finish
12:03 | 11:49/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:12:43
Pace10:07 /mi
2nd Half
Distance13.11 mi
Time2:41:27
Pace12:19 /mi
📊Positive Split: 21.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:53:0130:499:5530:49
9:55
-
10K
6.21 mi12:23:491:01:379:5530:48
9:55
0:00
15K
9.32 mi12:55:411:33:2910:0231:52
10:15
+0:20
20K
12.43 mi13:27:342:05:2210:0531:53
10:16
+0:01
Half
13.11 mi13:34:552:12:4310:077:21
10:46
+0:30
25K
15.53 mi14:02:122:40:0010:1827:17
11:15
+0:29
30K
18.64 mi14:40:553:18:4310:4038:43
12:28
+1:13
20M
20.00 mi14:57:423:35:3010:4616:47
12:21
-0:07
21M
21.00 mi15:10:423:48:3010:5313:00
13:00
+0:39
35K
21.75 mi15:20:073:57:5510:569:25
12:35
-0:25
23M
23.00 mi15:36:004:13:4811:0215:53
12:41
+0:06
24M
24.00 mi15:48:374:26:2511:0612:37
12:37
-0:04
40K
24.85 mi15:59:374:37:2511:1011:00
12:52
+0:15
25.2M
25.20 mi16:04:194:42:0711:124:42
13:38
+0:46
Finish
26.22 mi16:16:224:54:1011:1412:03
11:49
-1:49

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

9:55 /mi

Average Pace

11:14 /mi

Slowest Pace

13:38 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:40:00

54% of race

Time at Steady Pace

1:56:28

40% of race

Time at Slower Pace

17:42

6% of race

Average Pace: 11:13 /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 mi11:53:0130:499:5530:49
9:55
#25397
10K
6.21 mi12:23:491:01:379:5530:48
9:55
#25225
15K
9.32 mi12:55:411:33:2910:0231:52
10:15
#25361
20K
12.43 mi13:27:342:05:2210:0531:53
10:16
#25219
Half
13.11 mi13:34:552:12:4310:077:21
10:46
#25266
25K
15.53 mi14:02:122:40:0010:1827:17
11:15
#25322
30K
18.64 mi14:40:553:18:4310:4038:43
12:28
#25529
20M
20.00 mi14:57:423:35:3010:4616:47
12:21
#25536
21M
21.00 mi15:10:423:48:3010:5313:00
13:00
#25517
35K
21.75 mi15:20:073:57:5510:569:25
12:35
#25566
23M
23.00 mi15:36:004:13:4811:0215:53
12:41
#25646
24M
24.00 mi15:48:374:26:2511:0612:37
12:37
#25697
40K
24.85 mi15:59:374:37:2511:1011:00
12:52
#25732
25.2M
25.20 mi16:04:194:42:0711:124:42
13:38
#25744
Finish
26.22 mi16:16:224:54:1011:1412:03
11:49
#25797
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi25397149081490825522(Top 90%)14942(Top 93%)14942(Top 265%)
10K6.21 mi3.10 mi25225+17214810+9814810+9825124(Top 88%)14760(Top 92%)14760(Top 262%)
15K9.32 mi3.11 mi25361-13614876-6614876-6625522(Top 90%)14942(Top 93%)14942(Top 265%)
20K12.43 mi3.11 mi25219+14214798+7814798+7824764(Top 87%)14566(Top 90%)14566(Top 258%)
Half13.11 mi0.68 mi25266-4714814-1614814-1626206(Top 92%)15195(Top 94%)15195(Top 269%)
25K15.53 mi2.42 mi25322-5614827-1314827-1325551(Top 90%)14884(Top 92%)14884(Top 264%)
30K18.64 mi3.11 mi25529-20714882-5514882-5526125(Top 92%)15047(Top 93%)15047(Top 267%)
20M20.00 mi1.36 mi25536-714880+214880+225742(Top 91%)14804(Top 92%)14804(Top 262%)
21M21.00 mi1.00 mi25517+1914867+1314867+1325040(Top 88%)14388(Top 89%)14388(Top 255%)
35K21.75 mi0.75 mi25566-4914876-914876-926552(Top 93%)15119(Top 94%)15119(Top 268%)
23M23.00 mi1.25 mi25646-8014897-2114897-2126026(Top 92%)14854(Top 92%)14854(Top 263%)
24M24.00 mi1.00 mi25697-5114909-1214909-1226444(Top 93%)15034(Top 93%)15034(Top 266%)
40K24.85 mi0.85 mi25732-3514911-214911-226157(Top 92%)14869(Top 92%)14869(Top 264%)
25.2M25.20 mi0.35 mi25744-1214912-114912-125843(Top 91%)14668(Top 91%)14668(Top 260%)
Finish26.22 mi1.02 mi25797-5314938-2614938-2626580(Top 94%)15087(Top 94%)15087(Top 267%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 90%
×21stories
+97ft-345ft

Overall

25522

Males

14942

M18-39

14942

5K→10K

3.1 - 6.2 mi

Top 88%
×5stories
+79ft-138ft

Overall

25124

Males

14760

M18-39

14760

10K→15K

6.2 - 9.3 mi

Top 90%
×3stories
+67ft-78ft

Overall

25522

Males

14942

M18-39

14942

15K→20K

9.3 - 12.4 mi

Top 87%
×5stories
+106ft-86ft

Overall

24764

Males

14566

M18-39

14566

20K→Half

12.4 - 13.1 mi

Top 92%
×2stories
+19ft-37ft

Overall

26206

Males

15195

M18-39

15195

Half→25K

13.1 - 15.5 mi

Top 90%
×4stories
+66ft-88ft

Overall

25551

Males

14884

M18-39

14884

25K→30K

15.5 - 18.6 mi

Top 92%
×9stories
+181ft-148ft

Overall

26125

Males

15047

M18-39

15047

30K→20M

18.6 - 20.0 mi

Top 91%
×5stories
+64ft-50ft

Overall

25742

Males

14804

M18-39

14804

20M→21M

20.0 - 21.0 mi

Top 88%
×8stories
+106ft-24ft

Overall

25040

Males

14388

M18-39

14388

21M→35K

21.0 - 21.8 mi

Top 93%
×7stories
+17ft-86ft

Overall

26552

Males

15119

M18-39

15119

35K→23M

21.8 - 23.0 mi

Top 92%
×5stories
+23ft-63ft

Overall

26026

Males

14854

M18-39

14854

23M→24M

23.0 - 24.0 mi

Top 93%
×6stories
+12ft-82ft

Overall

26444

Males

15034

M18-39

15034

24M→40K

24.0 - 24.9 mi

Top 92%
×1story
+6ft-20ft

Overall

26157

Males

14869

M18-39

14869

40K→25.2M

24.9 - 25.2 mi

Top 91%
×1story
+13ft-16ft

Overall

25843

Males

14668

M18-39

14668

25.2M→Finish

25.2 - 26.2 mi

Top 94%
×2stories
+22ft-21ft

Overall

26580

Males

15087

M18-39

15087

Passing Analysis

Category:
Athletes Passed
922
Passed By
1322
Net Change
-400
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#25397
5K → 10K272100+172#25397#25225
10K → 15K98234-136#25225#25361
15K → 20K20361+142#25361#25219
20K → Half855-47#25219#25266
Half → 25K85141-56#25266#25322
25K → 30K55262-207#25322#25529
30K → 20M5663-7#25529#25536
20M → 21M4627+19#25536#25517
21M → 35K1867-49#25517#25566
35K → 23M25105-80#25566#25646
23M → 24M2071-51#25646#25697
24M → 40K2156-35#25697#25732
40K → 25.2M820-12#25732#25744
25.2M → Finish760-53#25744#25797
TOTALS9221322-400
📊

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