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BOSTON MARATHON 2025

Bryce Boswell

Bib: 31488•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

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
8:58/mi
27:50
↑ 97↓ 3451.5%
10K· 6.21 mi
8:53/mi
55:26
↑ 79↓ 1380.4%
15K· 9.32 mi
8:41/mi
1:22:26
↑ 67↓ 78
20K· 12.43 mi
9:07/mi
1:50:44
↑ 106↓ 860.1%
Half· 13.11 mi
9:08/mi
1:56:58
↑ 19↓ 370.5%
25K· 15.53 mi
9:45/mi
2:20:37
↑ 66↓ 880.2%
30K· 18.64 mi
12:01/mi
2:57:57
↑ 181↓ 1480.2%
20M
14:58/mi
3:18:18
↑ 64↓ 500.2%
21M
15:03/mi
3:33:21
↑ 106↓ 241.6%
35K· 21.75 mi
12:26/mi
3:42:39
↑ 17↓ 861.7%
23M
14:32/mi
4:00:51
↑ 23↓ 630.6%
24M
15:13/mi
4:16:04
↓ 821.3%
40K· 24.85 mi
15:30/mi
4:29:19
↓ 200.3%
25.2M
15:45/mi
4:34:45
↑ 13↓ 160.2%
Finish· 26.22 mi
10:47/mi
4:45:44
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:56:58
Pace8:55 /mi
2nd Half
Distance13.11 mi
Time2:48:46
Pace12:52 /mi
📊Positive Split: 44.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:51:2427:508:5827:50
8:58
-
10K
6.21 mi12:19:0055:268:5527:36
8:53
-0:05
15K
9.32 mi12:46:001:22:268:5127:00
8:41
-0:12
20K
12.43 mi13:14:181:50:448:5528:18
9:07
+0:26
Half
13.11 mi13:20:321:56:588:556:14
9:08
+0:01
25K
15.53 mi13:44:112:20:379:0323:39
9:45
+0:37
30K
18.64 mi14:21:312:57:579:3337:20
12:01
+2:16
20M
20.00 mi14:41:523:18:189:5520:21
14:58
+2:57
21M
21.00 mi14:56:553:33:2110:1015:03
15:03
+0:05
35K
21.75 mi15:06:133:42:3910:149:18
12:26
-2:37
23M
23.00 mi15:24:254:00:5110:2818:12
14:32
+2:06
24M
24.00 mi15:39:384:16:0410:4015:13
15:13
+0:41
40K
24.85 mi15:52:534:29:1910:5013:15
15:30
+0:17
25.2M
25.20 mi15:58:194:34:4510:545:26
15:45
+0:15
Finish
26.22 mi16:09:184:45:4410:5410:59
10:47
-4:58

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

8:41 /mi

Average Pace

10:54 /mi

Slowest Pace

15:45 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:20:37

49% of race

Time at Steady Pace

57:37

20% of race

Time at Slower Pace

1:27:30

31% of race

Average Pace: 10:54 /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 mi11:51:2427:508:5827:50
8:58
#22245
10K
6.21 mi12:19:0055:268:5527:36
8:53
#22057
15K
9.32 mi12:46:001:22:268:5127:00
8:41
#21509
20K
12.43 mi13:14:181:50:448:5528:18
9:07
#21498
Half
13.11 mi13:20:321:56:588:556:14
9:08
#21563
25K
15.53 mi13:44:112:20:379:0323:39
9:45
#21795
30K
18.64 mi14:21:312:57:579:3337:20
12:01
#22936
20M
20.00 mi14:41:523:18:189:5520:21
14:58
#23773
21M
21.00 mi14:56:553:33:2110:1015:03
15:03
#24140
35K
21.75 mi15:06:133:42:3910:149:18
12:26
#24252
23M
23.00 mi15:24:254:00:5110:2818:12
14:32
#24641
24M
24.00 mi15:39:384:16:0410:4015:13
15:13
#24954
40K
24.85 mi15:52:534:29:1910:5013:15
15:30
#25156
25.2M
25.20 mi15:58:194:34:4510:545:26
15:45
#25225
Finish
26.22 mi16:09:184:45:4410:5410:59
10:47
#25230
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi22245134231342320440(Top 72%)12711(Top 79%)12711(Top 225%)
10K6.21 mi3.10 mi22057+18813352+7113352+7121828(Top 77%)13270(Top 82%)13270(Top 235%)
15K9.32 mi3.11 mi21509+54813143+20913143+20920440(Top 72%)12711(Top 79%)12711(Top 225%)
20K12.43 mi3.11 mi21498+1113125+1813125+1821484(Top 76%)13122(Top 81%)13122(Top 233%)
Half13.11 mi0.68 mi21563-6513149-2413149-2422372(Top 79%)13509(Top 84%)13509(Top 239%)
25K15.53 mi2.42 mi21795-23213241-9213241-9222653(Top 80%)13585(Top 84%)13585(Top 241%)
30K18.64 mi3.11 mi22936-114113729-48813729-48825618(Top 90%)14813(Top 92%)14813(Top 263%)
20M20.00 mi1.36 mi23773-83714083-35414083-35427857(Top 98%)15800(Top 98%)15800(Top 280%)
21M21.00 mi1.00 mi24140-36714241-15814241-15827194(Top 96%)15455(Top 96%)15455(Top 274%)
35K21.75 mi0.75 mi24252-11214275-3414275-3426382(Top 93%)15037(Top 93%)15037(Top 267%)
23M23.00 mi1.25 mi24641-38914440-16514440-16527665(Top 97%)15659(Top 97%)15659(Top 278%)
24M24.00 mi1.00 mi24954-31314572-13214572-13228098(Top 99%)15897(Top 99%)15897(Top 282%)
40K24.85 mi0.85 mi25156-20214661-8914661-8927955(Top 98%)15805(Top 98%)15805(Top 280%)
25.2M25.20 mi0.35 mi25225-6914686-2514686-2527590(Top 97%)15591(Top 97%)15591(Top 276%)
Finish26.22 mi1.02 mi25230-514682+414682+424906(Top 88%)14231(Top 88%)14231(Top 252%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 72%
×21story building
+97ft-345ft

Overall

20440

Males

12711

M18-39

12711

5K→10K

3.1 - 6.2 mi

Top 77%
×5story building
+79ft-138ft

Overall

21828

Males

13270

M18-39

13270

10K→15K

6.2 - 9.3 mi

Top 72%
×3story building
+67ft-78ft

Overall

20440

Males

12711

M18-39

12711

15K→20K

9.3 - 12.4 mi

Top 76%
×5story building
+106ft-86ft

Overall

21484

Males

13122

M18-39

13122

20K→Half

12.4 - 13.1 mi

Top 79%
×2story building
+19ft-37ft

Overall

22372

Males

13509

M18-39

13509

Half→25K

13.1 - 15.5 mi

Top 80%
×4story building
+66ft-88ft

Overall

22653

Males

13585

M18-39

13585

25K→30K

15.5 - 18.6 mi

Top 90%
×9story building
+181ft-148ft

Overall

25618

Males

14813

M18-39

14813

30K→20M

18.6 - 20.0 mi

Top 98%
×5story building
+64ft-50ft

Overall

27857

Males

15800

M18-39

15800

20M→21M

20.0 - 21.0 mi

Top 96%
×8story building
+106ft-24ft

Overall

27194

Males

15455

M18-39

15455

21M→35K

21.0 - 21.8 mi

Top 93%
×7story building
+17ft-86ft

Overall

26382

Males

15037

M18-39

15037

35K→23M

21.8 - 23.0 mi

Top 97%
×5story building
+23ft-63ft

Overall

27665

Males

15659

M18-39

15659

23M→24M

23.0 - 24.0 mi

Top 99%
×6story building
+12ft-82ft

Overall

28098

Males

15897

M18-39

15897

24M→40K

24.0 - 24.9 mi

Top 98%
×1story
+6ft-20ft

Overall

27955

Males

15805

M18-39

15805

40K→25.2M

24.9 - 25.2 mi

Top 97%
×1story
+13ft-16ft

Overall

27590

Males

15591

M18-39

15591

25.2M→Finish

25.2 - 26.2 mi

Top 88%
×2story building
+22ft-21ft

Overall

24906

Males

14231

M18-39

14231

Passing Analysis

Category:
Athletes Passed
1351
Passed By
4336
Net Change
-2985
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#22245
5K → 10K362174+188#22245#22057
10K → 15K57628+548#22057#21509
15K → 20K203192+11#21509#21498
20K → Half1883-65#21498#21563
Half → 25K90322-232#21563#21795
25K → 30K221163-1141#21795#22936
30K → 20M9846-837#22936#23773
20M → 21M9376-367#23773#24140
21M → 35K14126-112#24140#24252
35K → 23M10399-389#24252#24641
23M → 24M4317-313#24641#24954
24M → 40K3205-202#24954#25156
40K → 25.2M372-69#25156#25225
25.2M → Finish2833-5#25225#25230
TOTALS13514336-2985
📊

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