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BOSTON MARATHON 2025

Kevin Byars

Bib: 7943•M

VA

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 11%
Gender (Male)
#0 / 16105
Top 18%
Masters (Masters Men)
#0 / 10463
Top 6%
Division (M50-54)
#0 / 1996
Top 2%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:32
Rank: #4659
Start → 5K
20:32 | 6:37/mi
10K· 6.21 mi
40:53
Rank: #4330 (+329)
5K → 10K
20:21 | 6:33/mi
15K· 9.32 mi
1:01:31
Rank: #4385 (-55)
10K → 15K
20:38 | 6:38/mi
20K· 12.43 mi
1:22:05
Rank: #4207 (+178)
15K → 20K
20:34 | 6:37/mi
Half· 13.11 mi
1:26:35
Rank: #4203 (+4)
20K → Half
4:30 | 6:36/mi
25K· 15.53 mi
1:42:27
Rank: #3959 (+244)
Half → 25K
15:52 | 6:33/mi
30K· 18.64 mi
2:03:17
Rank: #3726 (+233)
25K → 30K
20:50 | 6:42/mi
20M
2:12:18
Rank: #3572 (+154)
30K → 20M
9:01 | 6:38/mi
21M
2:19:14
Rank: #3425 (+147)
20M → 21M
6:56 | 6:56/mi
35K· 21.75 mi
2:24:07
Rank: #3363 (+62)
21M → 35K
4:53 | 6:32/mi
23M
2:32:30
Rank: #3221 (+142)
35K → 23M
8:23 | 6:42/mi
24M
2:39:06
Rank: #3158 (+63)
23M → 24M
6:36 | 6:36/mi
40K· 24.85 mi
2:44:48
Rank: #3071 (+87)
24M → 40K
5:42 | 6:40/mi
25.2M
2:47:19
Rank: #3039 (+32)
40K → 25.2M
2:31 | 7:18/mi
Finish· 26.22 mi
2:54:05
Rank: #3017 (+22)
25.2M → Finish
6:46 | 6:38/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:26:35
Pace6:36 /mi
2nd Half
Distance13.11 mi
Time1:27:30
Pace6:40 /mi
📊Positive Split: 1.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:29:1820:326:3720:32
6:37
-
10K
6.21 mi10:49:3940:536:3520:21
6:33
-0:04
15K
9.32 mi11:10:171:01:316:3620:38
6:38
+0:05
20K
12.43 mi11:30:511:22:056:3620:34
6:37
-0:01
Half
13.11 mi11:35:211:26:356:364:30
6:36
-0:01
25K
15.53 mi11:51:131:42:276:3615:52
6:33
-0:03
30K
18.64 mi12:12:032:03:176:3720:50
6:42
+0:09
20M
20.00 mi12:21:042:12:186:379:01
6:38
-0:04
21M
21.00 mi12:28:002:19:146:386:56
6:56
+0:18
35K
21.75 mi12:32:532:24:076:384:53
6:32
-0:24
23M
23.00 mi12:41:162:32:306:388:23
6:42
+0:10
24M
24.00 mi12:47:522:39:066:386:36
6:36
-0:06
40K
24.85 mi12:53:342:44:486:385:42
6:40
+0:04
25.2M
25.20 mi12:56:052:47:196:382:31
7:18
+0:38
Finish
26.22 mi13:02:512:54:056:396:46
6:38
-0:40

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

6:32 /mi

Average Pace

6:39 /mi

Slowest Pace

7:18 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:51:34

99% of race

Time at Steady Pace

2:31

1% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:38 /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 mi10:29:1820:326:3720:32
6:37
#4659
10K
6.21 mi10:49:3940:536:3520:21
6:33
#4330
15K
9.32 mi11:10:171:01:316:3620:38
6:38
#4385
20K
12.43 mi11:30:511:22:056:3620:34
6:37
#4207
Half
13.11 mi11:35:211:26:356:364:30
6:36
#4203
25K
15.53 mi11:51:131:42:276:3615:52
6:33
#3959
30K
18.64 mi12:12:032:03:176:3720:50
6:42
#3726
20M
20.00 mi12:21:042:12:186:379:01
6:38
#3572
21M
21.00 mi12:28:002:19:146:386:56
6:56
#3425
35K
21.75 mi12:32:532:24:076:384:53
6:32
#3363
23M
23.00 mi12:41:162:32:306:388:23
6:42
#3221
24M
24.00 mi12:47:522:39:066:386:36
6:36
#3158
40K
24.85 mi12:53:342:44:486:385:42
6:40
#3071
25.2M
25.20 mi12:56:052:47:196:382:31
7:18
#3039
Finish
26.22 mi13:02:512:54:056:396:46
6:38
#3017
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi4659436843684570(Top 16%)4277(Top 27%)4277(Top 214%)
10K6.21 mi3.10 mi4330+3294070+2984070+2984061(Top 14%)3819(Top 24%)3819(Top 191%)
15K9.32 mi3.11 mi4385-554122-524122-524570(Top 16%)4277(Top 27%)4277(Top 214%)
20K12.43 mi3.11 mi4207+1783956+1663956+1663815(Top 13%)3597(Top 22%)3597(Top 180%)
Half13.11 mi0.68 mi4203+43952+43952+44276(Top 15%)3998(Top 25%)3998(Top 200%)
25K15.53 mi2.42 mi3959+2443726+2263726+2263114(Top 11%)2948(Top 18%)2948(Top 148%)
30K18.64 mi3.11 mi3726+2333515+2113515+2112905(Top 10%)2736(Top 17%)2736(Top 137%)
20M20.00 mi1.36 mi3572+1543371+1443371+1442177(Top 8%)2058(Top 13%)2058(Top 103%)
21M21.00 mi1.00 mi3425+1473236+1353236+1351997(Top 7%)1880(Top 12%)1880(Top 94%)
35K21.75 mi0.75 mi3363+623175+613175+612584(Top 9%)2403(Top 15%)2403(Top 120%)
23M23.00 mi1.25 mi3221+1423040+1353040+1352231(Top 8%)2082(Top 13%)2082(Top 104%)
24M24.00 mi1.00 mi3158+632982+582982+582479(Top 9%)2283(Top 14%)2283(Top 114%)
40K24.85 mi0.85 mi3071+872898+842898+842227(Top 8%)2042(Top 13%)2042(Top 102%)
25.2M25.20 mi0.35 mi3039+322867+312867+312475(Top 9%)2209(Top 14%)2209(Top 111%)
Finish26.22 mi1.02 mi3017+222844+232844+233529(Top 12%)3076(Top 19%)3076(Top 154%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 16%
×21stories
+97ft-345ft

Overall

4570

Males

4277

M50-54

4277

5K→10K

3.1 - 6.2 mi

Top 14%
×5stories
+79ft-138ft

Overall

4061

Males

3819

M50-54

3819

10K→15K

6.2 - 9.3 mi

Top 16%
×3stories
+67ft-78ft

Overall

4570

Males

4277

M50-54

4277

15K→20K

9.3 - 12.4 mi

Top 13%
×5stories
+106ft-86ft

Overall

3815

Males

3597

M50-54

3597

20K→Half

12.4 - 13.1 mi

Top 15%
×2stories
+19ft-37ft

Overall

4276

Males

3998

M50-54

3998

Half→25K

13.1 - 15.5 mi

Top 11%
×4stories
+66ft-88ft

Overall

3114

Males

2948

M50-54

2948

25K→30K

15.5 - 18.6 mi

Top 10%
×9stories
+181ft-148ft

Overall

2905

Males

2736

M50-54

2736

30K→20M

18.6 - 20.0 mi

Top 8%
×5stories
+64ft-50ft

Overall

2177

Males

2058

M50-54

2058

20M→21M

20.0 - 21.0 mi

Top 7%
×8stories
+106ft-24ft

Overall

1997

Males

1880

M50-54

1880

21M→35K

21.0 - 21.8 mi

Top 9%
×7stories
+17ft-86ft

Overall

2584

Males

2403

M50-54

2403

35K→23M

21.8 - 23.0 mi

Top 8%
×5stories
+23ft-63ft

Overall

2231

Males

2082

M50-54

2082

23M→24M

23.0 - 24.0 mi

Top 9%
×6stories
+12ft-82ft

Overall

2479

Males

2283

M50-54

2283

24M→40K

24.0 - 24.9 mi

Top 8%
×1story
+6ft-20ft

Overall

2227

Males

2042

M50-54

2042

40K→25.2M

24.9 - 25.2 mi

Top 9%
×1story
+13ft-16ft

Overall

2475

Males

2209

M50-54

2209

25.2M→Finish

25.2 - 26.2 mi

Top 12%
×2stories
+22ft-21ft

Overall

3529

Males

3076

M50-54

3076

Passing Analysis

Category:
Athletes Passed
1951
Passed By
309
Net Change
+1642
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#4659
5K → 10K37445+329#4659#4330
10K → 15K77132-55#4330#4385
15K → 20K20224+178#4385#4207
20K → Half2016+4#4207#4203
Half → 25K2484+244#4203#3959
25K → 30K25522+233#3959#3726
30K → 20M1584+154#3726#3572
20M → 21M1503+147#3572#3425
21M → 35K675+62#3425#3363
35K → 23M15210+142#3363#3221
23M → 24M7310+63#3221#3158
24M → 40K947+87#3158#3071
40K → 25.2M375+32#3071#3039
25.2M → Finish4422+22#3039#3017
TOTALS1951309+1642
📊

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