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BOSTON MARATHON 2025

Holden Williamson

Bib: 30110•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
8:02/mi
24:57
↑ 97↓ 3451.5%
10K· 6.21 mi
8:26/mi
51:08
↑ 79↓ 1380.4%
15K· 9.32 mi
8:56/mi
1:18:53
↑ 67↓ 78
20K· 12.43 mi
9:49/mi
1:49:24
↑ 106↓ 860.1%
Half· 13.11 mi
9:55/mi
1:56:10
↑ 19↓ 370.5%
25K· 15.53 mi
13:44/mi
2:29:29
↑ 66↓ 880.2%
30K· 18.64 mi
14:58/mi
3:15:58
↑ 181↓ 1480.2%
20M
12:12/mi
3:32:33
↑ 64↓ 500.2%
21M
12:24/mi
3:44:57
↑ 106↓ 241.6%
35K· 21.75 mi
11:24/mi
3:53:29
↑ 17↓ 861.7%
23M
11:40/mi
4:08:06
↑ 23↓ 630.6%
24M
11:40/mi
4:19:46
↓ 821.3%
40K· 24.85 mi
11:15/mi
4:29:23
↓ 200.3%
25.2M
12:17/mi
4:33:37
↑ 13↓ 160.2%
Finish· 26.22 mi
10:56/mi
4:44:45
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:56:10
Pace8:52 /mi
2nd Half
Distance13.11 mi
Time2:48:35
Pace12:52 /mi
📊Positive Split: 45.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:44:2324:578:0224:57
8:02
-
10K
6.21 mi12:10:3451:088:1426:11
8:26
+0:24
15K
9.32 mi12:38:191:18:538:2827:45
8:56
+0:30
20K
12.43 mi13:08:501:49:248:4830:31
9:49
+0:53
Half
13.11 mi13:15:361:56:108:526:46
9:55
+0:06
25K
15.53 mi13:48:552:29:299:3733:19
13:44
+3:49
30K
18.64 mi14:35:243:15:5810:3146:29
14:58
+1:14
20M
20.00 mi14:51:593:32:3310:3816:35
12:12
-2:46
21M
21.00 mi15:04:233:44:5710:4312:24
12:24
+0:12
35K
21.75 mi15:12:553:53:2910:448:32
11:24
-1:00
23M
23.00 mi15:27:324:08:0610:4714:37
11:40
+0:16
24M
24.00 mi15:39:124:19:4610:4911:40
11:40
0:00
40K
24.85 mi15:48:494:29:2310:509:37
11:15
-0:25
25.2M
25.20 mi15:53:034:33:3710:514:14
12:17
+1:02
Finish
26.22 mi16:04:114:44:4510:5211:08
10:56
-1:21

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

8:02 /mi

Average Pace

10:52 /mi

Slowest Pace

14:58 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:56:10

41% of race

Time at Steady Pace

1:16:23

27% of race

Time at Slower Pace

1:32:12

32% of race

Average Pace: 10:52 /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 mi11:44:2324:578:0224:57
8:02
#16832
10K
6.21 mi12:10:3451:088:1426:11
8:26
#18167
15K
9.32 mi12:38:191:18:538:2827:45
8:56
#19441
20K
12.43 mi13:08:501:49:248:4830:31
9:49
#20949
Half
13.11 mi13:15:361:56:108:526:46
9:55
#21229
25K
15.53 mi13:48:552:29:299:3733:19
13:44
#23754
30K
18.64 mi14:35:243:15:5810:3146:29
14:58
#25261
20M
20.00 mi14:51:593:32:3310:3816:35
12:12
#25292
21M
21.00 mi15:04:233:44:5710:4312:24
12:24
#25252
35K
21.75 mi15:12:553:53:2910:448:32
11:24
#25241
23M
23.00 mi15:27:324:08:0610:4714:37
11:40
#25203
24M
24.00 mi15:39:124:19:4610:4911:40
11:40
#25210
40K
24.85 mi15:48:494:29:2310:509:37
11:15
#25162
25.2M
25.20 mi15:53:034:33:3710:514:14
12:17
#25150
Finish
26.22 mi16:04:114:44:4510:5211:08
10:56
#25165
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi16832111391113921708(Top 76%)13270(Top 82%)13270(Top 235%)
10K6.21 mi3.10 mi18167-133511687-54811687-54819355(Top 68%)12219(Top 76%)12219(Top 217%)
15K9.32 mi3.11 mi19441-127412238-55112238-55121708(Top 76%)13270(Top 82%)13270(Top 235%)
20K12.43 mi3.11 mi20949-150812886-64812886-64823823(Top 84%)14146(Top 88%)14146(Top 251%)
Half13.11 mi0.68 mi21229-28013013-12713013-12724657(Top 87%)14509(Top 90%)14509(Top 257%)
25K15.53 mi2.42 mi23754-252514134-112114134-112127754(Top 98%)15817(Top 98%)15817(Top 280%)
30K18.64 mi3.11 mi25261-150714771-63714771-63728020(Top 99%)15883(Top 99%)15883(Top 282%)
20M20.00 mi1.36 mi25292-3114765+614765+625540(Top 90%)14701(Top 91%)14701(Top 261%)
21M21.00 mi1.00 mi25252+4014736+2914736+2924262(Top 85%)14040(Top 87%)14040(Top 249%)
35K21.75 mi0.75 mi25241+1114728+814728+824952(Top 88%)14331(Top 89%)14331(Top 254%)
23M23.00 mi1.25 mi25203+3814697+3114697+3124556(Top 86%)14126(Top 88%)14126(Top 250%)
24M24.00 mi1.00 mi25210-714691+614691+625186(Top 89%)14400(Top 89%)14400(Top 255%)
40K24.85 mi0.85 mi25162+4814663+2814663+2823669(Top 83%)13602(Top 84%)13602(Top 241%)
25.2M25.20 mi0.35 mi25150+1214657+614657+623759(Top 84%)13652(Top 85%)13652(Top 242%)
Finish26.22 mi1.02 mi25165-1514653+414653+425218(Top 89%)14397(Top 89%)14397(Top 255%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 76%
×21story building
+97ft-345ft

Overall

21708

Males

13270

M18-39

13270

5K→10K

3.1 - 6.2 mi

Top 68%
×5story building
+79ft-138ft

Overall

19355

Males

12219

M18-39

12219

10K→15K

6.2 - 9.3 mi

Top 76%
×3story building
+67ft-78ft

Overall

21708

Males

13270

M18-39

13270

15K→20K

9.3 - 12.4 mi

Top 84%
×5story building
+106ft-86ft

Overall

23823

Males

14146

M18-39

14146

20K→Half

12.4 - 13.1 mi

Top 87%
×2story building
+19ft-37ft

Overall

24657

Males

14509

M18-39

14509

Half→25K

13.1 - 15.5 mi

Top 98%
×4story building
+66ft-88ft

Overall

27754

Males

15817

M18-39

15817

25K→30K

15.5 - 18.6 mi

Top 99%
×9story building
+181ft-148ft

Overall

28020

Males

15883

M18-39

15883

30K→20M

18.6 - 20.0 mi

Top 90%
×5story building
+64ft-50ft

Overall

25540

Males

14701

M18-39

14701

20M→21M

20.0 - 21.0 mi

Top 85%
×8story building
+106ft-24ft

Overall

24262

Males

14040

M18-39

14040

21M→35K

21.0 - 21.8 mi

Top 88%
×7story building
+17ft-86ft

Overall

24952

Males

14331

M18-39

14331

35K→23M

21.8 - 23.0 mi

Top 86%
×5story building
+23ft-63ft

Overall

24556

Males

14126

M18-39

14126

23M→24M

23.0 - 24.0 mi

Top 89%
×6story building
+12ft-82ft

Overall

25186

Males

14400

M18-39

14400

24M→40K

24.0 - 24.9 mi

Top 83%
×1story
+6ft-20ft

Overall

23669

Males

13602

M18-39

13602

40K→25.2M

24.9 - 25.2 mi

Top 84%
×1story
+13ft-16ft

Overall

23759

Males

13652

M18-39

13652

25.2M→Finish

25.2 - 26.2 mi

Top 89%
×2story building
+22ft-21ft

Overall

25218

Males

14397

M18-39

14397

Passing Analysis

Category:
Athletes Passed
415
Passed By
8748
Net Change
-8333
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#16832
5K → 10K401375-1335#16832#18167
10K → 15K181292-1274#18167#19441
15K → 20K241532-1508#19441#20949
20K → Half3283-280#20949#21229
Half → 25K12526-2525#21229#23754
25K → 30K41511-1507#23754#25261
30K → 20M4374-31#25261#25292
20M → 21M6323+40#25292#25252
21M → 35K2817+11#25252#25241
35K → 23M6123+38#25241#25203
23M → 24M3340-7#25203#25210
24M → 40K579+48#25210#25162
40K → 25.2M186+12#25162#25150
25.2M → Finish2237-15#25150#25165
TOTALS4158748-8333
📊

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