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BOSTON MARATHON 2025

Ian Petroni

Bib: 11958•M

OH

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Male)
#0 / 16105
Masters (Masters Men)
#0 / 10463
Division (M45-49)
#0 / 2386
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
25:17
Rank: #17636
Start → 5K
8:08/mi
25:17 split
10K· 6.21 mi
50:30
Rank: #17454 (+182)
5K → 10K
8:07/mi
25:13 split
15K· 9.32 mi
1:16:15
Rank: #17637 (-183)
10K → 15K
8:17/mi
25:45 split
20K· 12.43 mi
1:43:26
Rank: #18146 (-509)
15K → 20K
8:45/mi
27:11 split
Half· 13.11 mi
1:49:36
Rank: #18372 (-226)
20K → Half
9:02/mi
6:10 split
25K· 15.53 mi
2:16:08
Rank: #20426 (-2054)
Half → 25K
10:57/mi
26:32 split
30K· 18.64 mi
2:47:54
Rank: #20903 (-477)
25K → 30K
10:13/mi
31:46 split
20M
3:06:14
Rank: #21916 (-1013)
30K → 20M
13:29/mi
18:20 split
21M
3:18:23
Rank: #22067 (-151)
20M → 21M
12:09/mi
12:09 split
35K· 21.75 mi
3:27:30
Rank: #22312 (-245)
21M → 35K
12:11/mi
9:07 split
23M
3:43:40
Rank: #22667 (-355)
35K → 23M
12:55/mi
16:10 split
24M
3:53:22
Rank: #22554 (+113)
23M → 24M
9:42/mi
9:42 split
40K· 24.85 mi
4:01:42
Rank: #22443 (+111)
24M → 40K
9:45/mi
8:20 split
25.2M
4:05:20
Rank: #22394 (+49)
40K → 25.2M
10:32/mi
3:38 split
Finish· 26.22 mi
4:14:48
Rank: #22332 (+62)
25.2M → Finish
9:17/mi
9:28 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:49:36
Pace8:22 /mi
2nd Half
Distance13.11 mi
Time2:25:12
Pace11:05 /mi
📊Positive Split: 32.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:16:4425:178:0825:17
8:08
-
10K
6.21 mi11:41:5750:308:0825:13
8:07
-0:01
15K
9.32 mi12:07:421:16:158:1125:45
8:17
+0:10
20K
12.43 mi12:34:531:43:268:1927:11
8:45
+0:28
Half
13.11 mi12:41:031:49:368:226:10
9:02
+0:17
25K
15.53 mi13:07:352:16:088:4626:32
10:57
+1:55
30K
18.64 mi13:39:212:47:549:0031:46
10:13
-0:44
20M
20.00 mi13:57:413:06:149:1918:20
13:29
+3:16
21M
21.00 mi14:09:503:18:239:2712:09
12:09
-1:20
35K
21.75 mi14:18:573:27:309:329:07
12:11
+0:02
23M
23.00 mi14:35:073:43:409:4316:10
12:55
+0:44
24M
24.00 mi14:44:493:53:229:439:42
9:42
-3:13
40K
24.85 mi14:53:094:01:429:438:20
9:45
+0:03
25.2M
25.20 mi14:56:474:05:209:443:38
10:32
+0:47
Finish
26.22 mi15:06:154:14:489:449:28
9:17
-1:15

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

8:07 /mi

Average Pace

9:44 /mi

Slowest Pace

13:29 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:43:26

41% of race

Time at Steady Pace

1:09:04

27% of race

Time at Slower Pace

1:22:18

32% of race

Average Pace: 9:43 /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 mi11:16:4425:178:0825:17
8:08
#17636
10K
6.21 mi11:41:5750:308:0825:13
8:07
#17454
15K
9.32 mi12:07:421:16:158:1125:45
8:17
#17637
20K
12.43 mi12:34:531:43:268:1927:11
8:45
#18146
Half
13.11 mi12:41:031:49:368:226:10
9:02
#18372
25K
15.53 mi13:07:352:16:088:4626:32
10:57
#20426
30K
18.64 mi13:39:212:47:549:0031:46
10:13
#20903
20M
20.00 mi13:57:413:06:149:1918:20
13:29
#21916
21M
21.00 mi14:09:503:18:239:2712:09
12:09
#22067
35K
21.75 mi14:18:573:27:309:329:07
12:11
#22312
23M
23.00 mi14:35:073:43:409:4316:10
12:55
#22667
24M
24.00 mi14:44:493:53:229:439:42
9:42
#22554
40K
24.85 mi14:53:094:01:429:438:20
9:45
#22443
25.2M
25.20 mi14:56:474:05:209:443:38
10:32
#22394
Finish
26.22 mi15:06:154:14:489:449:28
9:17
#22332
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi17636114731147317962(Top 63%)11622(Top 72%)11622(Top 487%)
10K6.21 mi3.10 mi17454+18211395+7811395+7817316(Top 61%)11379(Top 71%)11379(Top 477%)
15K9.32 mi3.11 mi17637-18311483-8811483-8817962(Top 63%)11622(Top 72%)11622(Top 487%)
20K12.43 mi3.11 mi18146-50911675-19211675-19219677(Top 69%)12324(Top 77%)12324(Top 517%)
Half13.11 mi0.68 mi18372-22611769-9411769-9421964(Top 77%)13323(Top 83%)13323(Top 558%)
25K15.53 mi2.42 mi20426-205412644-87512644-87525124(Top 88%)14700(Top 91%)14700(Top 616%)
30K18.64 mi3.11 mi20903-47712812-16812812-16822246(Top 78%)13284(Top 82%)13284(Top 557%)
20M20.00 mi1.36 mi21916-101313268-45613268-45626886(Top 95%)15321(Top 95%)15321(Top 642%)
21M21.00 mi1.00 mi22067-15113305-3713305-3723841(Top 84%)13838(Top 86%)13838(Top 580%)
35K21.75 mi0.75 mi22312-24513393-8813393-8826106(Top 92%)14888(Top 92%)14888(Top 624%)
23M23.00 mi1.25 mi22667-35513522-12913522-12926276(Top 93%)14970(Top 93%)14970(Top 627%)
24M24.00 mi1.00 mi22554+11313446+7613446+7620379(Top 72%)12054(Top 75%)12054(Top 505%)
40K24.85 mi0.85 mi22443+11113383+6313383+6319627(Top 69%)11626(Top 72%)11626(Top 487%)
25.2M25.20 mi0.35 mi22394+4913349+3413349+3419125(Top 67%)11383(Top 71%)11383(Top 477%)
Finish26.22 mi1.02 mi22332+6213309+4013309+4020334(Top 72%)11977(Top 74%)11977(Top 502%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 63%
×21story building
+97ft-345ft

Overall

17962

Males

11622

M45-49

11622

5K→10K

3.1 - 6.2 mi

Top 61%
×5story building
+79ft-138ft

Overall

17316

Males

11379

M45-49

11379

10K→15K

6.2 - 9.3 mi

Top 63%
×3story building
+67ft-78ft

Overall

17962

Males

11622

M45-49

11622

15K→20K

9.3 - 12.4 mi

Top 69%
×5story building
+106ft-86ft

Overall

19677

Males

12324

M45-49

12324

20K→Half

12.4 - 13.1 mi

Top 77%
×2story building
+19ft-37ft

Overall

21964

Males

13323

M45-49

13323

Half→25K

13.1 - 15.5 mi

Top 88%
×4story building
+66ft-88ft

Overall

25124

Males

14700

M45-49

14700

25K→30K

15.5 - 18.6 mi

Top 78%
×9story building
+181ft-148ft

Overall

22246

Males

13284

M45-49

13284

30K→20M

18.6 - 20.0 mi

Top 95%
×5story building
+64ft-50ft

Overall

26886

Males

15321

M45-49

15321

20M→21M

20.0 - 21.0 mi

Top 84%
×8story building
+106ft-24ft

Overall

23841

Males

13838

M45-49

13838

21M→35K

21.0 - 21.8 mi

Top 92%
×7story building
+17ft-86ft

Overall

26106

Males

14888

M45-49

14888

35K→23M

21.8 - 23.0 mi

Top 93%
×5story building
+23ft-63ft

Overall

26276

Males

14970

M45-49

14970

23M→24M

23.0 - 24.0 mi

Top 72%
×6story building
+12ft-82ft

Overall

20379

Males

12054

M45-49

12054

24M→40K

24.0 - 24.9 mi

Top 69%
×1story
+6ft-20ft

Overall

19627

Males

11626

M45-49

11626

40K→25.2M

24.9 - 25.2 mi

Top 67%
×1story
+13ft-16ft

Overall

19125

Males

11383

M45-49

11383

25.2M→Finish

25.2 - 26.2 mi

Top 72%
×2story building
+22ft-21ft

Overall

20334

Males

11977

M45-49

11977

Passing Analysis

Category:
Athletes Passed
1141
Passed By
5837
Net Change
-4696
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#17636
5K → 10K387205+182#17636#17454
10K → 15K138321-183#17454#17637
15K → 20K69578-509#17637#18146
20K → Half5231-226#18146#18372
Half → 25K72061-2054#18372#20426
25K → 30K103580-477#20426#20903
30K → 20M41017-1013#20903#21916
20M → 21M43194-151#21916#22067
21M → 35K5250-245#22067#22312
35K → 23M16371-355#22312#22667
23M → 24M1207+113#22667#22554
24M → 40K1143+111#22554#22443
40K → 25.2M534+49#22443#22394
25.2M → Finish7715+62#22394#22332
TOTALS11415837-4696
📊

Passing Visuals

Category:
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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