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BOSTON MARATHON 2025

Jefferson Willis

Bib: 30323•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

Start
0:00:00
Race begins
5K· 3.11 mi
30:10
Rank: #24869
Start → 5K
9:43/mi
30:10 split
10K· 6.21 mi
59:29
Rank: #24378 (+491)
5K → 10K
9:26/mi
29:19 split
15K· 9.32 mi
1:27:51
Rank: #23819 (+559)
10K → 15K
9:08/mi
28:22 split
20K· 12.43 mi
1:56:59
Rank: #23512 (+307)
15K → 20K
9:23/mi
29:08 split
Half· 13.11 mi
2:03:21
Rank: #23479 (+33)
20K → Half
9:20/mi
6:22 split
25K· 15.53 mi
2:27:07
Rank: #23323 (+156)
Half → 25K
9:48/mi
23:46 split
30K· 18.64 mi
2:58:40
Rank: #23051 (+272)
25K → 30K
10:09/mi
31:33 split
20M
3:12:46
Rank: #22960 (+91)
30K → 20M
10:23/mi
14:06 split
21M
3:23:49
Rank: #22874 (+86)
20M → 21M
11:03/mi
11:03 split
35K· 21.75 mi
3:31:43
Rank: #22899 (-25)
21M → 35K
10:34/mi
7:54 split
23M
3:45:33
Rank: #22909 (-10)
35K → 23M
11:03/mi
13:50 split
24M
3:56:15
Rank: #22921 (-12)
23M → 24M
10:42/mi
10:42 split
40K· 24.85 mi
4:05:24
Rank: #22906 (+15)
24M → 40K
10:42/mi
9:09 split
25.2M
4:09:45
Rank: #22948 (-42)
40K → 25.2M
12:37/mi
4:21 split
Finish· 26.22 mi
4:20:41
Rank: #23029 (-81)
25.2M → Finish
10:44/mi
10:56 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:03:21
Pace9:25 /mi
2nd Half
Distance13.11 mi
Time2:17:20
Pace10:29 /mi
📊Positive Split: 11.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:51:4930:109:4330:10
9:43
-
10K
6.21 mi12:21:0859:299:3429:19
9:26
-0:17
15K
9.32 mi12:49:301:27:519:2628:22
9:08
-0:18
20K
12.43 mi13:18:381:56:599:2529:08
9:23
+0:15
Half
13.11 mi13:25:002:03:219:256:22
9:20
-0:03
25K
15.53 mi13:48:462:27:079:2823:46
9:48
+0:28
30K
18.64 mi14:20:192:58:409:3531:33
10:09
+0:21
20M
20.00 mi14:34:253:12:469:3814:06
10:23
+0:14
21M
21.00 mi14:45:283:23:499:4211:03
11:03
+0:40
35K
21.75 mi14:53:223:31:439:447:54
10:34
-0:29
23M
23.00 mi15:07:123:45:339:4813:50
11:03
+0:29
24M
24.00 mi15:17:543:56:159:5110:42
10:42
-0:21
40K
24.85 mi15:27:034:05:249:529:09
10:42
0:00
25.2M
25.20 mi15:31:244:09:459:554:21
12:37
+1:55
Finish
26.22 mi15:42:204:20:419:5710:56
10:44
-1:53

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

9:08 /mi

Average Pace

9:57 /mi

Slowest Pace

12:37 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:27:07

56% of race

Time at Steady Pace

1:24:20

32% of race

Time at Slower Pace

29:14

11% of race

Average Pace: 9:57 /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 mi11:51:4930:109:4330:10
9:43
#24869
10K
6.21 mi12:21:0859:299:3429:19
9:26
#24378
15K
9.32 mi12:49:301:27:519:2628:22
9:08
#23819
20K
12.43 mi13:18:381:56:599:2529:08
9:23
#23512
Half
13.11 mi13:25:002:03:219:256:22
9:20
#23479
25K
15.53 mi13:48:462:27:079:2823:46
9:48
#23323
30K
18.64 mi14:20:192:58:409:3531:33
10:09
#23051
20M
20.00 mi14:34:253:12:469:3814:06
10:23
#22960
21M
21.00 mi14:45:283:23:499:4211:03
11:03
#22874
35K
21.75 mi14:53:223:31:439:447:54
10:34
#22899
23M
23.00 mi15:07:123:45:339:4813:50
11:03
#22909
24M
24.00 mi15:17:543:56:159:5110:42
10:42
#22921
40K
24.85 mi15:27:034:05:249:529:09
10:42
#22906
25.2M
25.20 mi15:31:244:09:459:554:21
12:37
#22948
Finish
26.22 mi15:42:204:20:419:5710:56
10:44
#23029
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi24869146611466122589(Top 80%)13643(Top 85%)13643(Top 242%)
10K6.21 mi3.10 mi24378+49114431+23014431+23023938(Top 84%)14227(Top 88%)14227(Top 252%)
15K9.32 mi3.11 mi23819+55914176+25514176+25522589(Top 80%)13643(Top 85%)13643(Top 242%)
20K12.43 mi3.11 mi23512+30714039+13714039+13722495(Top 79%)13575(Top 84%)13575(Top 241%)
Half13.11 mi0.68 mi23479+3314031+814031+823047(Top 81%)13810(Top 86%)13810(Top 245%)
25K15.53 mi2.42 mi23323+15613950+8113950+8122769(Top 80%)13640(Top 85%)13640(Top 242%)
30K18.64 mi3.11 mi23051+27213774+17613774+17622076(Top 78%)13209(Top 82%)13209(Top 234%)
20M20.00 mi1.36 mi22960+9113710+6413710+6422082(Top 78%)13088(Top 81%)13088(Top 232%)
21M21.00 mi1.00 mi22874+8613652+5813652+5821535(Top 76%)12753(Top 79%)12753(Top 226%)
35K21.75 mi0.75 mi22899-2513655-313655-323288(Top 82%)13526(Top 84%)13526(Top 240%)
23M23.00 mi1.25 mi22909-1013634+2113634+2123341(Top 82%)13499(Top 84%)13499(Top 239%)
24M24.00 mi1.00 mi22921-1213615+1913615+1923311(Top 82%)13463(Top 84%)13463(Top 239%)
40K24.85 mi0.85 mi22906+1513588+2713588+2722455(Top 79%)12962(Top 80%)12962(Top 230%)
25.2M25.20 mi0.35 mi22948-4213600-1213600-1224395(Top 86%)13955(Top 87%)13955(Top 247%)
Finish26.22 mi1.02 mi23029-8113636-3613636-3624790(Top 87%)14164(Top 88%)14164(Top 251%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 80%
×21stories
+97ft-345ft

Overall

22589

Males

13643

M18-39

13643

5K→10K

3.1 - 6.2 mi

Top 84%
×5stories
+79ft-138ft

Overall

23938

Males

14227

M18-39

14227

10K→15K

6.2 - 9.3 mi

Top 80%
×3stories
+67ft-78ft

Overall

22589

Males

13643

M18-39

13643

15K→20K

9.3 - 12.4 mi

Top 79%
×5stories
+106ft-86ft

Overall

22495

Males

13575

M18-39

13575

20K→Half

12.4 - 13.1 mi

Top 81%
×2stories
+19ft-37ft

Overall

23047

Males

13810

M18-39

13810

Half→25K

13.1 - 15.5 mi

Top 80%
×4stories
+66ft-88ft

Overall

22769

Males

13640

M18-39

13640

25K→30K

15.5 - 18.6 mi

Top 78%
×9stories
+181ft-148ft

Overall

22076

Males

13209

M18-39

13209

30K→20M

18.6 - 20.0 mi

Top 78%
×5stories
+64ft-50ft

Overall

22082

Males

13088

M18-39

13088

20M→21M

20.0 - 21.0 mi

Top 76%
×8stories
+106ft-24ft

Overall

21535

Males

12753

M18-39

12753

21M→35K

21.0 - 21.8 mi

Top 82%
×7stories
+17ft-86ft

Overall

23288

Males

13526

M18-39

13526

35K→23M

21.8 - 23.0 mi

Top 82%
×5stories
+23ft-63ft

Overall

23341

Males

13499

M18-39

13499

23M→24M

23.0 - 24.0 mi

Top 82%
×6stories
+12ft-82ft

Overall

23311

Males

13463

M18-39

13463

24M→40K

24.0 - 24.9 mi

Top 79%
×1story
+6ft-20ft

Overall

22455

Males

12962

M18-39

12962

40K→25.2M

24.9 - 25.2 mi

Top 86%
×1story
+13ft-16ft

Overall

24395

Males

13955

M18-39

13955

25.2M→Finish

25.2 - 26.2 mi

Top 87%
×2stories
+22ft-21ft

Overall

24790

Males

14164

M18-39

14164

Passing Analysis

Category:
Athletes Passed
2472
Passed By
632
Net Change
+1840
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#24869
5K → 10K53039+491#24869#24378
10K → 15K57011+559#24378#23819
15K → 20K32922+307#23819#23512
20K → Half4714+33#23512#23479
Half → 25K21155+156#23479#23323
25K → 30K32048+272#23323#23051
30K → 20M11928+91#23051#22960
20M → 21M10822+86#22960#22874
21M → 35K3358-25#22874#22899
35K → 23M6474-10#22899#22909
23M → 24M5567-12#22909#22921
24M → 40K6247+15#22921#22906
40K → 25.2M648-42#22906#22948
25.2M → Finish1899-81#22948#23029
TOTALS2472632+1840
📊

Passing Visuals

Category:
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🔥Passing Intensity

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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