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BOSTON MARATHON 2025

Brett Caldwell

Bib: 11132•M

NY

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
7:25/mi
23:02
↑ 97↓ 3451.5%
10K· 6.21 mi
7:15/mi
45:32
↑ 79↓ 1380.4%
15K· 9.32 mi
8:02/mi
1:10:29
↑ 67↓ 78
20K· 12.43 mi
7:36/mi
1:34:05
↑ 106↓ 860.1%
Half· 13.11 mi
7:34/mi
1:39:15
↑ 19↓ 370.5%
25K· 15.53 mi
8:15/mi
1:59:15
↑ 66↓ 880.2%
30K· 18.64 mi
9:25/mi
2:28:31
↑ 181↓ 1480.2%
20M
9:26/mi
2:41:20
↑ 64↓ 500.2%
21M
9:30/mi
2:50:50
↑ 106↓ 241.6%
35K· 21.75 mi
8:04/mi
2:56:52
↑ 17↓ 861.7%
23M
8:26/mi
3:07:25
↑ 23↓ 630.6%
24M
8:21/mi
3:15:46
↓ 821.3%
40K· 24.85 mi
8:52/mi
3:23:21
↓ 200.3%
25.2M
10:58/mi
3:27:08
↑ 13↓ 160.2%
Finish· 26.22 mi
8:49/mi
3:36:07
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:39:15
Pace7:34 /mi
2nd Half
Distance13.11 mi
Time1:56:52
Pace8:55 /mi
📊Positive Split: 17.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:49:3223:027:2523:02
7:25
-
10K
6.21 mi11:12:0245:327:2022:30
7:15
-0:10
15K
9.32 mi11:36:591:10:297:3424:57
8:02
+0:47
20K
12.43 mi12:00:351:34:057:3423:36
7:36
-0:26
Half
13.11 mi12:05:451:39:157:345:10
7:34
-0:02
25K
15.53 mi12:25:451:59:157:4120:00
8:15
+0:41
30K
18.64 mi12:55:012:28:317:5829:16
9:25
+1:10
20M
20.00 mi13:07:502:41:208:0412:49
9:26
+0:01
21M
21.00 mi13:17:202:50:508:089:30
9:30
+0:04
35K
21.75 mi13:23:222:56:528:086:02
8:04
-1:26
23M
23.00 mi13:33:553:07:258:0910:33
8:26
+0:22
24M
24.00 mi13:42:163:15:468:098:21
8:21
-0:05
40K
24.85 mi13:49:513:23:218:117:35
8:52
+0:31
25.2M
25.20 mi13:53:383:27:088:133:47
10:58
+2:06
Finish
26.22 mi14:02:373:36:078:158:59
8:49
-2:09

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

7:15 /mi

Average Pace

8:15 /mi

Slowest Pace

10:58 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:14:18

34% of race

Time at Steady Pace

1:18:52

36% of race

Time at Slower Pace

1:02:57

29% of race

Average Pace: 8:15 /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 mi10:49:3223:027:2523:02
7:25
#11463
10K
6.21 mi11:12:0245:327:2022:30
7:15
#10567
15K
9.32 mi11:36:591:10:297:3424:57
8:02
#12523
20K
12.43 mi12:00:351:34:057:3423:36
7:36
#12243
Half
13.11 mi12:05:451:39:157:345:10
7:34
#12253
25K
15.53 mi12:25:451:59:157:4120:00
8:15
#12810
30K
18.64 mi12:55:012:28:317:5829:16
9:25
#14427
20M
20.00 mi13:07:502:41:208:0412:49
9:26
#14870
21M
21.00 mi13:17:202:50:508:089:30
9:30
#14915
35K
21.75 mi13:23:222:56:528:086:02
8:04
#14797
23M
23.00 mi13:33:553:07:258:0910:33
8:26
#14658
24M
24.00 mi13:42:163:15:468:098:21
8:21
#14594
40K
24.85 mi13:49:513:23:218:117:35
8:52
#14603
25.2M
25.20 mi13:53:383:27:088:133:47
10:58
#14742
Finish
26.22 mi14:02:373:36:078:158:59
8:49
#14868
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi114638926892616269(Top 57%)10926(Top 68%)10926(Top 458%)
10K6.21 mi3.10 mi10567+8968457+4698457+4699857(Top 35%)8069(Top 50%)8069(Top 338%)
15K9.32 mi3.11 mi12523-19569372-9159372-91516269(Top 57%)10926(Top 68%)10926(Top 458%)
20K12.43 mi3.11 mi12243+2809207+1659207+16511567(Top 41%)8772(Top 54%)8772(Top 368%)
Half13.11 mi0.68 mi12253-109205+29205+212329(Top 43%)9184(Top 57%)9184(Top 385%)
25K15.53 mi2.42 mi12810-5579408-2039408-20315598(Top 55%)10480(Top 65%)10480(Top 439%)
30K18.64 mi3.11 mi14427-161710035-62710035-62719608(Top 69%)12103(Top 75%)12103(Top 507%)
20M20.00 mi1.36 mi14870-44310208-17310208-17318853(Top 66%)11613(Top 72%)11613(Top 487%)
21M21.00 mi1.00 mi14915-4510197+1110197+1116052(Top 57%)10276(Top 64%)10276(Top 431%)
35K21.75 mi0.75 mi14797+11810133+6410133+6412682(Top 45%)8668(Top 54%)8668(Top 363%)
23M23.00 mi1.25 mi14658+13910036+9710036+9712842(Top 45%)8627(Top 54%)8627(Top 362%)
24M24.00 mi1.00 mi14594+649981+559981+5513557(Top 48%)8929(Top 55%)8929(Top 374%)
40K24.85 mi0.85 mi14603-99960+219960+2115556(Top 55%)9690(Top 60%)9690(Top 406%)
25.2M25.20 mi0.35 mi14742-13910005-4510005-4520483(Top 72%)12016(Top 75%)12016(Top 504%)
Finish26.22 mi1.02 mi14868-12610030-2510030-2518104(Top 64%)10911(Top 68%)10911(Top 457%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 57%
×21story building
+97ft-345ft

Overall

16269

Males

10926

M45-49

10926

5K→10K

3.1 - 6.2 mi

Top 35%
×5story building
+79ft-138ft

Overall

9857

Males

8069

M45-49

8069

10K→15K

6.2 - 9.3 mi

Top 57%
×3story building
+67ft-78ft

Overall

16269

Males

10926

M45-49

10926

15K→20K

9.3 - 12.4 mi

Top 41%
×5story building
+106ft-86ft

Overall

11567

Males

8772

M45-49

8772

20K→Half

12.4 - 13.1 mi

Top 43%
×2story building
+19ft-37ft

Overall

12329

Males

9184

M45-49

9184

Half→25K

13.1 - 15.5 mi

Top 55%
×4story building
+66ft-88ft

Overall

15598

Males

10480

M45-49

10480

25K→30K

15.5 - 18.6 mi

Top 69%
×9story building
+181ft-148ft

Overall

19608

Males

12103

M45-49

12103

30K→20M

18.6 - 20.0 mi

Top 66%
×5story building
+64ft-50ft

Overall

18853

Males

11613

M45-49

11613

20M→21M

20.0 - 21.0 mi

Top 57%
×8story building
+106ft-24ft

Overall

16052

Males

10276

M45-49

10276

21M→35K

21.0 - 21.8 mi

Top 45%
×7story building
+17ft-86ft

Overall

12682

Males

8668

M45-49

8668

35K→23M

21.8 - 23.0 mi

Top 45%
×5story building
+23ft-63ft

Overall

12842

Males

8627

M45-49

8627

23M→24M

23.0 - 24.0 mi

Top 48%
×6story building
+12ft-82ft

Overall

13557

Males

8929

M45-49

8929

24M→40K

24.0 - 24.9 mi

Top 55%
×1story
+6ft-20ft

Overall

15556

Males

9690

M45-49

9690

40K→25.2M

24.9 - 25.2 mi

Top 72%
×1story
+13ft-16ft

Overall

20483

Males

12016

M45-49

12016

25.2M→Finish

25.2 - 26.2 mi

Top 64%
×2story building
+22ft-21ft

Overall

18104

Males

10911

M45-49

10911

Passing Analysis

Category:
Athletes Passed
2075
Passed By
5480
Net Change
-3405
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#11463
5K → 10K93640+896#11463#10567
10K → 15K91965-1956#10567#12523
15K → 20K34060+280#12523#12243
20K → Half2232-10#12243#12253
Half → 25K59616-557#12253#12810
25K → 30K421659-1617#12810#14427
30K → 20M45488-443#14427#14870
20M → 21M96141-45#14870#14915
21M → 35K1268+118#14915#14797
35K → 23M17738+139#14797#14658
23M → 24M10743+64#14658#14594
24M → 40K6978-9#14594#14603
40K → 25.2M11150-139#14603#14742
25.2M → Finish36162-126#14742#14868
TOTALS20755480-3405
📊

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