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BOSTON MARATHON 2025

Brec Carson

Bib: 10994•M

NC

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 50%
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
7:43/mi
24:00
↑ 97↓ 3451.5%
10K· 6.21 mi
7:44/mi
48:01
↑ 79↓ 1380.4%
15K· 9.32 mi
7:59/mi
1:12:50
↑ 67↓ 78
20K· 12.43 mi
7:52/mi
1:37:17
↑ 106↓ 860.1%
Half· 13.11 mi
7:43/mi
1:42:33
↑ 19↓ 370.5%
25K· 15.53 mi
8:02/mi
2:02:02
↑ 66↓ 880.2%
30K· 18.64 mi
8:33/mi
2:28:35
↑ 181↓ 1480.2%
20M
8:42/mi
2:40:25
↑ 64↓ 500.2%
21M
9:00/mi
2:49:25
↑ 106↓ 241.6%
35K· 21.75 mi
8:03/mi
2:55:26
↑ 17↓ 861.7%
23M
8:22/mi
3:05:55
↑ 23↓ 630.6%
24M
8:33/mi
3:14:28
↓ 821.3%
40K· 24.85 mi
8:33/mi
3:21:47
↓ 200.3%
25.2M
9:14/mi
3:24:58
↑ 13↓ 160.2%
Finish· 26.22 mi
8:06/mi
3:33:13
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:42:33
Pace7:49 /mi
2nd Half
Distance13.11 mi
Time1:50:40
Pace8:27 /mi
📊Positive Split: 7.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:51:3324:007:4324:00
7:43
-
10K
6.21 mi11:15:3448:017:4424:01
7:44
+0:01
15K
9.32 mi11:40:231:12:507:4924:49
7:59
+0:15
20K
12.43 mi12:04:501:37:177:5024:27
7:52
-0:07
Half
13.11 mi12:10:061:42:337:495:16
7:43
-0:09
25K
15.53 mi12:29:352:02:027:5119:29
8:02
+0:19
30K
18.64 mi12:56:082:28:357:5826:33
8:33
+0:31
20M
20.00 mi13:07:582:40:258:0111:50
8:42
+0:09
21M
21.00 mi13:16:582:49:258:049:00
9:00
+0:18
35K
21.75 mi13:22:592:55:268:046:01
8:03
-0:57
23M
23.00 mi13:33:283:05:558:0510:29
8:22
+0:19
24M
24.00 mi13:42:013:14:288:068:33
8:33
+0:11
40K
24.85 mi13:49:203:21:478:077:19
8:33
0:00
25.2M
25.20 mi13:52:313:24:588:083:11
9:14
+0:41
Finish
26.22 mi14:00:463:33:138:088:15
8:06
-1:08

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

7:43 /mi

Average Pace

8:08 /mi

Slowest Pace

9:14 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:26:47

69% of race

Time at Steady Pace

1:03:15

30% of race

Time at Slower Pace

3:11

1% of race

Average Pace: 8:08 /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 mi10:51:3324:007:4324:00
7:43
#14174
10K
6.21 mi11:15:3448:017:4424:01
7:44
#14123
15K
9.32 mi11:40:231:12:507:4924:49
7:59
#14748
20K
12.43 mi12:04:501:37:177:5024:27
7:52
#14475
Half
13.11 mi12:10:061:42:337:495:16
7:43
#14414
25K
15.53 mi12:29:352:02:027:5119:29
8:02
#14346
30K
18.64 mi12:56:082:28:357:5826:33
8:33
#14448
20M
20.00 mi13:07:582:40:258:0111:50
8:42
#14494
21M
21.00 mi13:16:582:49:258:049:00
9:00
#14403
35K
21.75 mi13:22:592:55:268:046:01
8:03
#14337
23M
23.00 mi13:33:283:05:558:0510:29
8:22
#14197
24M
24.00 mi13:42:013:14:288:068:33
8:33
#14229
40K
24.85 mi13:49:203:21:478:077:19
8:33
#14181
25.2M
25.20 mi13:52:313:24:588:083:11
9:14
#14151
Finish
26.22 mi14:00:463:33:138:088:15
8:06
#14099
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi14174101171011715938(Top 56%)10778(Top 67%)10778(Top 452%)
10K6.21 mi3.10 mi14123+5110072+4510072+4514162(Top 50%)10065(Top 62%)10065(Top 422%)
15K9.32 mi3.11 mi14748-62510302-23010302-23015938(Top 56%)10778(Top 67%)10778(Top 452%)
20K12.43 mi3.11 mi14475+27310157+14510157+14513833(Top 49%)9794(Top 61%)9794(Top 410%)
Half13.11 mi0.68 mi14414+6110130+2710130+2713516(Top 48%)9704(Top 60%)9704(Top 407%)
25K15.53 mi2.42 mi14346+6810063+6710063+6714165(Top 50%)9834(Top 61%)9834(Top 412%)
30K18.64 mi3.11 mi14448-10210044+1910044+1915033(Top 53%)10065(Top 62%)10065(Top 422%)
20M20.00 mi1.36 mi14494-4610040+410040+415090(Top 53%)9954(Top 62%)9954(Top 417%)
21M21.00 mi1.00 mi14403+919979+619979+6113480(Top 47%)9094(Top 56%)9094(Top 381%)
35K21.75 mi0.75 mi14337+669937+429937+4212527(Top 44%)8588(Top 53%)8588(Top 360%)
23M23.00 mi1.25 mi14197+1409819+1189819+11812491(Top 44%)8469(Top 53%)8469(Top 355%)
24M24.00 mi1.00 mi14229-329813+69813+614797(Top 52%)9490(Top 59%)9490(Top 398%)
40K24.85 mi0.85 mi14181+489760+539760+5313770(Top 48%)8895(Top 55%)8895(Top 373%)
25.2M25.20 mi0.35 mi14151+309739+219739+2113056(Top 46%)8501(Top 53%)8501(Top 356%)
Finish26.22 mi1.02 mi14099+529689+509689+5013548(Top 48%)8794(Top 55%)8794(Top 369%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 56%
×21story building
+97ft-345ft

Overall

15938

Males

10778

M45-49

10778

5K→10K

3.1 - 6.2 mi

Top 50%
×5story building
+79ft-138ft

Overall

14162

Males

10065

M45-49

10065

10K→15K

6.2 - 9.3 mi

Top 56%
×3story building
+67ft-78ft

Overall

15938

Males

10778

M45-49

10778

15K→20K

9.3 - 12.4 mi

Top 49%
×5story building
+106ft-86ft

Overall

13833

Males

9794

M45-49

9794

20K→Half

12.4 - 13.1 mi

Top 48%
×2story building
+19ft-37ft

Overall

13516

Males

9704

M45-49

9704

Half→25K

13.1 - 15.5 mi

Top 50%
×4story building
+66ft-88ft

Overall

14165

Males

9834

M45-49

9834

25K→30K

15.5 - 18.6 mi

Top 53%
×9story building
+181ft-148ft

Overall

15033

Males

10065

M45-49

10065

30K→20M

18.6 - 20.0 mi

Top 53%
×5story building
+64ft-50ft

Overall

15090

Males

9954

M45-49

9954

20M→21M

20.0 - 21.0 mi

Top 47%
×8story building
+106ft-24ft

Overall

13480

Males

9094

M45-49

9094

21M→35K

21.0 - 21.8 mi

Top 44%
×7story building
+17ft-86ft

Overall

12527

Males

8588

M45-49

8588

35K→23M

21.8 - 23.0 mi

Top 44%
×5story building
+23ft-63ft

Overall

12491

Males

8469

M45-49

8469

23M→24M

23.0 - 24.0 mi

Top 52%
×6story building
+12ft-82ft

Overall

14797

Males

9490

M45-49

9490

24M→40K

24.0 - 24.9 mi

Top 48%
×1story
+6ft-20ft

Overall

13770

Males

8895

M45-49

8895

40K→25.2M

24.9 - 25.2 mi

Top 46%
×1story
+13ft-16ft

Overall

13056

Males

8501

M45-49

8501

25.2M→Finish

25.2 - 26.2 mi

Top 48%
×2story building
+22ft-21ft

Overall

13548

Males

8794

M45-49

8794

Passing Analysis

Category:
Athletes Passed
2028
Passed By
1953
Net Change
+75
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#14174
5K → 10K290239+51#14174#14123
10K → 15K61686-625#14123#14748
15K → 20K34269+273#14748#14475
20K → Half709+61#14475#14414
Half → 25K203135+68#14414#14346
25K → 30K202304-102#14346#14448
30K → 20M117163-46#14448#14494
20M → 21M15867+91#14494#14403
21M → 35K9226+66#14403#14337
35K → 23M18848+140#14337#14197
23M → 24M6799-32#14197#14229
24M → 40K9446+48#14229#14181
40K → 25.2M4919+30#14181#14151
25.2M → Finish9543+52#14151#14099
TOTALS20281953+75
📊

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