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BOSTON MARATHON 2025

William Knox

Bib: 6583•M

MD

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 14%
Gender (Male)
#0 / 16105
Top 23%
Masters (Masters Men)
#0 / 10463
Top 10%
Division (M40-44)
#0 / 2247
Top 26%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
21:34
Rank: #7350
Start → 5K
21:34 | 6:56/mi
10K· 6.21 mi
43:01
Rank: #7307 (+43)
5K → 10K
21:27 | 6:54/mi
15K· 9.32 mi
1:04:19
Rank: #7068 (+239)
10K → 15K
21:18 | 6:51/mi
20K· 12.43 mi
1:25:33
Rank: #6706 (+362)
15K → 20K
21:14 | 6:50/mi
Half· 13.11 mi
1:30:05
Rank: #6600 (+106)
20K → Half
4:32 | 6:39/mi
25K· 15.53 mi
1:46:25
Rank: #6161 (+439)
Half → 25K
16:20 | 6:44/mi
30K· 18.64 mi
2:07:48
Rank: #5628 (+533)
25K → 30K
21:23 | 6:53/mi
20M
2:16:59
Rank: #5354 (+274)
30K → 20M
9:11 | 6:45/mi
21M
2:24:01
Rank: #5071 (+283)
20M → 21M
7:02 | 7:02/mi
35K· 21.75 mi
2:28:50
Rank: #4913 (+158)
21M → 35K
4:49 | 6:26/mi
23M
2:37:06
Rank: #4631 (+282)
35K → 23M
8:16 | 6:36/mi
24M
2:43:36
Rank: #4440 (+191)
23M → 24M
6:30 | 6:30/mi
40K· 24.85 mi
2:49:11
Rank: #4269 (+171)
24M → 40K
5:35 | 6:32/mi
25.2M
2:51:39
Rank: #4206 (+63)
40K → 25.2M
2:28 | 7:09/mi
Finish· 26.22 mi
2:57:58
Rank: #4025 (+181)
25.2M → Finish
6:19 | 6:12/mi

The Course

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Half Splits

1st Half· via Half
Distance13.11 mi
Time1:30:05
Pace6:52 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:27:53
Pace6:42 /mi
📊Negative Split: 2.4% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:26:1521:346:5621:34
6:56
-
10K
6.21 mi10:47:4243:016:5521:27
6:54
-0:02
15K
9.32 mi11:09:001:04:196:5421:18
6:51
-0:03
20K
12.43 mi11:30:141:25:336:5321:14
6:50
-0:01
Half
13.11 mi11:34:461:30:056:524:32
6:39
-0:11
25K
15.53 mi11:51:061:46:256:5116:20
6:44
+0:05
30K
18.64 mi12:12:292:07:486:5121:23
6:53
+0:09
20M
20.00 mi12:21:402:16:596:519:11
6:45
-0:08
21M
21.00 mi12:28:422:24:016:517:02
7:02
+0:17
35K
21.75 mi12:33:312:28:506:514:49
6:26
-0:36
23M
23.00 mi12:41:472:37:066:508:16
6:36
+0:10
24M
24.00 mi12:48:172:43:366:496:30
6:30
-0:06
40K
24.85 mi12:53:522:49:116:485:35
6:32
+0:02
25.2M
25.20 mi12:56:202:51:396:492:28
7:09
+0:37
Finish
26.22 mi13:02:392:57:586:486:19
6:12
-0:57

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

6:12 /mi

Average Pace

6:48 /mi

Slowest Pace

7:09 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:01:32

35% of race

Time at Steady Pace

1:56:26

65% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:47 /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 mi10:26:1521:346:5621:34
6:56
#7350
10K
6.21 mi10:47:4243:016:5521:27
6:54
#7307
15K
9.32 mi11:09:001:04:196:5421:18
6:51
#7068
20K
12.43 mi11:30:141:25:336:5321:14
6:50
#6706
Half
13.11 mi11:34:461:30:056:524:32
6:39
#6600
25K
15.53 mi11:51:061:46:256:5116:20
6:44
#6161
30K
18.64 mi12:12:292:07:486:5121:23
6:53
#5628
20M
20.00 mi12:21:402:16:596:519:11
6:45
#5354
21M
21.00 mi12:28:422:24:016:517:02
7:02
#5071
35K
21.75 mi12:33:312:28:506:514:49
6:26
#4913
23M
23.00 mi12:41:472:37:066:508:16
6:36
#4631
24M
24.00 mi12:48:172:43:366:496:30
6:30
#4440
40K
24.85 mi12:53:522:49:116:485:35
6:32
#4269
25.2M
25.20 mi12:56:202:51:396:492:28
7:09
#4206
Finish
26.22 mi13:02:392:57:586:486:19
6:12
#4025
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi7350655565556611(Top 23%)5949(Top 37%)5949(Top 265%)
10K6.21 mi3.10 mi7307+436518+376518+377239(Top 25%)6461(Top 40%)6461(Top 288%)
15K9.32 mi3.11 mi7068+2396334+1846334+1846611(Top 23%)5949(Top 37%)5949(Top 265%)
20K12.43 mi3.11 mi6706+3626049+2856049+2855621(Top 20%)5124(Top 32%)5124(Top 228%)
Half13.11 mi0.68 mi6600+1065961+885961+884732(Top 17%)4392(Top 27%)4392(Top 195%)
25K15.53 mi2.42 mi6161+4395583+3785583+3784372(Top 15%)4050(Top 25%)4050(Top 180%)
30K18.64 mi3.11 mi5628+5335142+4415142+4413961(Top 14%)3649(Top 23%)3649(Top 162%)
20M20.00 mi1.36 mi5354+2744902+2404902+2402725(Top 10%)2554(Top 16%)2554(Top 114%)
21M21.00 mi1.00 mi5071+2834659+2434659+2432396(Top 8%)2237(Top 14%)2237(Top 100%)
35K21.75 mi0.75 mi4913+1584519+1404519+1402183(Top 8%)2042(Top 13%)2042(Top 91%)
23M23.00 mi1.25 mi4631+2824268+2514268+2511843(Top 6%)1724(Top 11%)1724(Top 77%)
24M24.00 mi1.00 mi4440+1914096+1724096+1722052(Top 7%)1905(Top 12%)1905(Top 85%)
40K24.85 mi0.85 mi4269+1713939+1573939+1571731(Top 6%)1601(Top 10%)1601(Top 71%)
25.2M25.20 mi0.35 mi4206+633882+573882+571974(Top 7%)1787(Top 11%)1787(Top 80%)
Finish26.22 mi1.02 mi4025+1813720+1623720+1621521(Top 5%)1415(Top 9%)1415(Top 63%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 23%
×21stories
+97ft-345ft

Overall

6611

Males

5949

M40-44

5949

5K→10K

3.1 - 6.2 mi

Top 25%
×5stories
+79ft-138ft

Overall

7239

Males

6461

M40-44

6461

10K→15K

6.2 - 9.3 mi

Top 23%
×3stories
+67ft-78ft

Overall

6611

Males

5949

M40-44

5949

15K→20K

9.3 - 12.4 mi

Top 20%
×5stories
+106ft-86ft

Overall

5621

Males

5124

M40-44

5124

20K→Half

12.4 - 13.1 mi

Top 17%
×2stories
+19ft-37ft

Overall

4732

Males

4392

M40-44

4392

Half→25K

13.1 - 15.5 mi

Top 15%
×4stories
+66ft-88ft

Overall

4372

Males

4050

M40-44

4050

25K→30K

15.5 - 18.6 mi

Top 14%
×9stories
+181ft-148ft

Overall

3961

Males

3649

M40-44

3649

30K→20M

18.6 - 20.0 mi

Top 10%
×5stories
+64ft-50ft

Overall

2725

Males

2554

M40-44

2554

20M→21M

20.0 - 21.0 mi

Top 8%
×8stories
+106ft-24ft

Overall

2396

Males

2237

M40-44

2237

21M→35K

21.0 - 21.8 mi

Top 8%
×7stories
+17ft-86ft

Overall

2183

Males

2042

M40-44

2042

35K→23M

21.8 - 23.0 mi

Top 6%
×5stories
+23ft-63ft

Overall

1843

Males

1724

M40-44

1724

23M→24M

23.0 - 24.0 mi

Top 7%
×6stories
+12ft-82ft

Overall

2052

Males

1905

M40-44

1905

24M→40K

24.0 - 24.9 mi

Top 6%
×1story
+6ft-20ft

Overall

1731

Males

1601

M40-44

1601

40K→25.2M

24.9 - 25.2 mi

Top 7%
×1story
+13ft-16ft

Overall

1974

Males

1787

M40-44

1787

25.2M→Finish

25.2 - 26.2 mi

Top 5%
×2stories
+22ft-21ft

Overall

1521

Males

1415

M40-44

1415

Passing Analysis

Category:
Athletes Passed
3578
Passed By
253
Net Change
+3325
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#7350
5K → 10K223180+43#7350#7307
10K → 15K28243+239#7307#7068
15K → 20K37210+362#7068#6706
20K → Half1071+106#6706#6600
Half → 25K4434+439#6600#6161
25K → 30K5374+533#6161#5628
30K → 20M2740+274#5628#5354
20M → 21M2841+283#5354#5071
21M → 35K1624+158#5071#4913
35K → 23M2820+282#4913#4631
23M → 24M1921+191#4631#4440
24M → 40K1721+171#4440#4269
40K → 25.2M663+63#4269#4206
25.2M → Finish1821+181#4206#4025
TOTALS3578253+3325
📊

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