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BOSTON MARATHON 2025

Matthew Fonstein

Bib: 26092•M

MA

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

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
10:10/mi
31:36
↑ 97↓ 3451.5%
10K· 6.21 mi
10:34/mi
1:04:27
↑ 79↓ 1380.4%
15K· 9.32 mi
11:41/mi
1:40:44
↑ 67↓ 78
20K· 12.43 mi
11:08/mi
2:15:18
↑ 106↓ 860.1%
Half· 13.11 mi
11:00/mi
2:22:48
↑ 19↓ 370.5%
25K· 15.53 mi
11:19/mi
2:50:14
↑ 66↓ 880.2%
30K· 18.64 mi
11:54/mi
3:27:11
↑ 181↓ 1480.2%
20M
12:27/mi
3:44:06
↑ 64↓ 500.2%
21M
15:07/mi
3:59:13
↑ 106↓ 241.6%
35K· 21.75 mi
12:08/mi
4:08:18
↑ 17↓ 861.7%
23M
11:12/mi
4:22:20
↑ 23↓ 630.6%
24M
11:18/mi
4:33:38
↓ 821.3%
40K· 24.85 mi
11:13/mi
4:43:13
↓ 200.3%
25.2M
12:51/mi
4:47:39
↑ 13↓ 160.2%
Finish· 26.22 mi
10:46/mi
4:58:37
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:22:48
Pace10:54 /mi
2nd Half
Distance13.11 mi
Time2:35:49
Pace11:53 /mi
📊Positive Split: 9.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:46:5931:3610:1031:36
10:10
-
10K
6.21 mi12:19:501:04:2710:2232:51
10:34
+0:24
15K
9.32 mi12:56:071:40:4410:4836:17
11:41
+1:07
20K
12.43 mi13:30:412:15:1810:5334:34
11:08
-0:33
Half
13.11 mi13:38:112:22:4810:547:30
11:00
-0:08
25K
15.53 mi14:05:372:50:1410:5827:26
11:19
+0:19
30K
18.64 mi14:42:343:27:1111:0736:57
11:54
+0:35
20M
20.00 mi14:59:293:44:0611:1216:55
12:27
+0:33
21M
21.00 mi15:14:363:59:1311:2315:07
15:07
+2:40
35K
21.75 mi15:23:414:08:1811:259:05
12:08
-2:59
23M
23.00 mi15:37:434:22:2011:2414:02
11:12
-0:56
24M
24.00 mi15:49:014:33:3811:2411:18
11:18
+0:06
40K
24.85 mi15:58:364:43:1311:249:35
11:13
-0:05
25.2M
25.20 mi16:03:024:47:3911:254:26
12:51
+1:38
Finish
26.22 mi16:14:004:58:3711:2410:58
10:46
-2:05

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

10:10 /mi

Average Pace

11:24 /mi

Slowest Pace

15:07 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:04:27

22% of race

Time at Steady Pace

2:31:40

51% of race

Time at Slower Pace

1:22:30

28% of race

Average Pace: 11:23 /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 mi11:46:5931:3610:1031:36
10:10
#25998
10K
6.21 mi12:19:501:04:2710:2232:51
10:34
#26235
15K
9.32 mi12:56:071:40:4410:4836:17
11:41
#26807
20K
12.43 mi13:30:412:15:1810:5334:34
11:08
#26620
Half
13.11 mi13:38:112:22:4810:547:30
11:00
#26609
25K
15.53 mi14:05:372:50:1410:5827:26
11:19
#26438
30K
18.64 mi14:42:343:27:1111:0736:57
11:54
#26249
20M
20.00 mi14:59:293:44:0611:1216:55
12:27
#26221
21M
21.00 mi15:14:363:59:1311:2315:07
15:07
#26336
35K
21.75 mi15:23:414:08:1811:259:05
12:08
#26319
23M
23.00 mi15:37:434:22:2011:2414:02
11:12
#26200
24M
24.00 mi15:49:014:33:3811:2411:18
11:18
#26138
40K
24.85 mi15:58:364:43:1311:249:35
11:13
#26090
25.2M
25.20 mi16:03:024:47:3911:254:26
12:51
#26080
Finish
26.22 mi16:14:004:58:3711:2410:58
10:46
#26066
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi25998151751517527401(Top 96%)15709(Top 98%)15709(Top 658%)
10K6.21 mi3.10 mi26235-23715268-9315268-9326399(Top 93%)15321(Top 95%)15321(Top 642%)
15K9.32 mi3.11 mi26807-57215501-23315501-23327401(Top 96%)15709(Top 98%)15709(Top 658%)
20K12.43 mi3.11 mi26620+18715418+8315418+8326188(Top 92%)15213(Top 94%)15213(Top 638%)
Half13.11 mi0.68 mi26609+1115411+715411+726485(Top 93%)15303(Top 95%)15303(Top 641%)
25K15.53 mi2.42 mi26438+17115331+8015331+8025634(Top 90%)14915(Top 93%)14915(Top 625%)
30K18.64 mi3.11 mi26249+18915225+10615225+10625443(Top 90%)14737(Top 92%)14737(Top 618%)
20M20.00 mi1.36 mi26221+2815193+3215193+3225848(Top 91%)14856(Top 92%)14856(Top 623%)
21M21.00 mi1.00 mi26336-11515231-3815231-3827247(Top 96%)15483(Top 96%)15483(Top 649%)
35K21.75 mi0.75 mi26319+1715211+2015211+2026061(Top 92%)14865(Top 92%)14865(Top 623%)
23M23.00 mi1.25 mi26200+11915154+5715154+5723692(Top 83%)13689(Top 85%)13689(Top 574%)
24M24.00 mi1.00 mi26138+6215119+3515119+3524570(Top 87%)14095(Top 88%)14095(Top 591%)
40K24.85 mi0.85 mi26090+4815093+2615093+2623585(Top 83%)13551(Top 84%)13551(Top 568%)
25.2M25.20 mi0.35 mi26080+1015085+815085+824833(Top 87%)14182(Top 88%)14182(Top 594%)
Finish26.22 mi1.02 mi26066+1415078+715078+724882(Top 88%)14218(Top 88%)14218(Top 596%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 96%
×21story building
+97ft-345ft

Overall

27401

Males

15709

M45-49

15709

5K→10K

3.1 - 6.2 mi

Top 93%
×5story building
+79ft-138ft

Overall

26399

Males

15321

M45-49

15321

10K→15K

6.2 - 9.3 mi

Top 96%
×3story building
+67ft-78ft

Overall

27401

Males

15709

M45-49

15709

15K→20K

9.3 - 12.4 mi

Top 92%
×5story building
+106ft-86ft

Overall

26188

Males

15213

M45-49

15213

20K→Half

12.4 - 13.1 mi

Top 93%
×2story building
+19ft-37ft

Overall

26485

Males

15303

M45-49

15303

Half→25K

13.1 - 15.5 mi

Top 90%
×4story building
+66ft-88ft

Overall

25634

Males

14915

M45-49

14915

25K→30K

15.5 - 18.6 mi

Top 90%
×9story building
+181ft-148ft

Overall

25443

Males

14737

M45-49

14737

30K→20M

18.6 - 20.0 mi

Top 91%
×5story building
+64ft-50ft

Overall

25848

Males

14856

M45-49

14856

20M→21M

20.0 - 21.0 mi

Top 96%
×8story building
+106ft-24ft

Overall

27247

Males

15483

M45-49

15483

21M→35K

21.0 - 21.8 mi

Top 92%
×7story building
+17ft-86ft

Overall

26061

Males

14865

M45-49

14865

35K→23M

21.8 - 23.0 mi

Top 83%
×5story building
+23ft-63ft

Overall

23692

Males

13689

M45-49

13689

23M→24M

23.0 - 24.0 mi

Top 87%
×6story building
+12ft-82ft

Overall

24570

Males

14095

M45-49

14095

24M→40K

24.0 - 24.9 mi

Top 83%
×1story
+6ft-20ft

Overall

23585

Males

13551

M45-49

13551

40K→25.2M

24.9 - 25.2 mi

Top 87%
×1story
+13ft-16ft

Overall

24833

Males

14182

M45-49

14182

25.2M→Finish

25.2 - 26.2 mi

Top 88%
×2story building
+22ft-21ft

Overall

24882

Males

14218

M45-49

14218

Passing Analysis

Category:
Athletes Passed
1147
Passed By
1215
Net Change
-68
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#25998
5K → 10K92329-237#25998#26235
10K → 15K18590-572#26235#26807
15K → 20K22033+187#26807#26620
20K → Half2413+11#26620#26609
Half → 25K18716+171#26609#26438
25K → 30K21526+189#26438#26249
30K → 20M6335+28#26249#26221
20M → 21M11126-115#26221#26336
21M → 35K3114+17#26336#26319
35K → 23M1212+119#26319#26200
23M → 24M675+62#26200#26138
24M → 40K568+48#26138#26090
40K → 25.2M155+10#26090#26080
25.2M → Finish2713+14#26080#26066
TOTALS11471215-68
📊

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