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BOSTON MARATHON 2025

Chester Blanton

Bib: 21101•M

HI

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Male)
#0 / 16105
Masters (Masters Men)
#0 / 10463
Division (M65-69)
#0 / 639
Top 25%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
26:22
Rank: #19804
Start → 5K
26:22 | 8:29/mi
10K· 6.21 mi
52:58
Rank: #19973 (-169)
5K → 10K
26:36 | 8:34/mi
15K· 9.32 mi
1:19:40
Rank: #19964 (+9)
10K → 15K
26:42 | 8:36/mi
20K· 12.43 mi
1:46:19
Rank: #19621 (+343)
15K → 20K
26:39 | 8:35/mi
Half· 13.11 mi
1:52:13
Rank: #19634 (-13)
20K → Half
5:54 | 8:39/mi
25K· 15.53 mi
2:12:56
Rank: #19243 (+391)
Half → 25K
20:43 | 8:33/mi
30K· 18.64 mi
2:40:21
Rank: #18766 (+477)
25K → 30K
27:25 | 8:49/mi
20M
2:52:38
Rank: #18603 (+163)
30K → 20M
12:17 | 9:02/mi
21M
3:02:10
Rank: #18446 (+157)
20M → 21M
9:32 | 9:32/mi
35K· 21.75 mi
3:09:03
Rank: #18496 (-50)
21M → 35K
6:53 | 9:12/mi
23M
3:20:48
Rank: #18458 (+38)
35K → 23M
11:45 | 9:23/mi
24M
3:29:59
Rank: #18452 (+6)
23M → 24M
9:11 | 9:11/mi
40K· 24.85 mi
3:37:51
Rank: #18402 (+50)
24M → 40K
7:52 | 9:12/mi
25.2M
3:41:09
Rank: #18348 (+54)
40K → 25.2M
3:18 | 9:34/mi
Finish· 26.22 mi
3:49:44
Rank: #18259 (+89)
25.2M → Finish
8:35 | 8:25/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:52:13
Pace8:34 /mi
2nd Half
Distance13.11 mi
Time1:57:31
Pace8:58 /mi
📊Positive Split: 4.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:19:4026:228:2926:22
8:29
-
10K
6.21 mi11:46:1652:588:3126:36
8:34
+0:05
15K
9.32 mi12:12:581:19:408:3326:42
8:36
+0:02
20K
12.43 mi12:39:371:46:198:3326:39
8:35
-0:01
Half
13.11 mi12:45:311:52:138:345:54
8:39
+0:04
25K
15.53 mi13:06:142:12:568:3320:43
8:33
-0:06
30K
18.64 mi13:33:392:40:218:3627:25
8:49
+0:16
20M
20.00 mi13:45:562:52:388:3812:17
9:02
+0:13
21M
21.00 mi13:55:283:02:108:409:32
9:32
+0:30
35K
21.75 mi14:02:213:09:038:426:53
9:12
-0:20
23M
23.00 mi14:14:063:20:488:4411:45
9:23
+0:11
24M
24.00 mi14:23:173:29:598:459:11
9:11
-0:12
40K
24.85 mi14:31:093:37:518:467:52
9:12
+0:01
25.2M
25.20 mi14:34:273:41:098:473:18
9:34
+0:22
Finish
26.22 mi14:43:023:49:448:468:35
8:25
-1:09

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

8:25 /mi

Average Pace

8:46 /mi

Slowest Pace

9:34 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:25:09

89% of race

Time at Steady Pace

24:35

11% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:46 /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 mi11:19:4026:228:2926:22
8:29
#19804
10K
6.21 mi11:46:1652:588:3126:36
8:34
#19973
15K
9.32 mi12:12:581:19:408:3326:42
8:36
#19964
20K
12.43 mi12:39:371:46:198:3326:39
8:35
#19621
Half
13.11 mi12:45:311:52:138:345:54
8:39
#19634
25K
15.53 mi13:06:142:12:568:3320:43
8:33
#19243
30K
18.64 mi13:33:392:40:218:3627:25
8:49
#18766
20M
20.00 mi13:45:562:52:388:3812:17
9:02
#18603
21M
21.00 mi13:55:283:02:108:409:32
9:32
#18446
35K
21.75 mi14:02:213:09:038:426:53
9:12
#18496
23M
23.00 mi14:14:063:20:488:4411:45
9:23
#18458
24M
24.00 mi14:23:173:29:598:459:11
9:11
#18452
40K
24.85 mi14:31:093:37:518:467:52
9:12
#18402
25.2M
25.20 mi14:34:273:41:098:473:18
9:34
#18348
Finish
26.22 mi14:43:023:49:448:468:35
8:25
#18259
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM65-69Seg. OverallSeg. MalesSeg. M65-69
5K3.11 mi3.11 mi19804123501235019881(Top 70%)12445(Top 77%)12445(Top 1948%)
10K6.21 mi3.10 mi19973-16912460-11012460-11020145(Top 71%)12544(Top 78%)12544(Top 1963%)
15K9.32 mi3.11 mi19964+912461-112461-119881(Top 70%)12445(Top 77%)12445(Top 1948%)
20K12.43 mi3.11 mi19621+34312307+15412307+15418713(Top 66%)11911(Top 74%)11911(Top 1864%)
Half13.11 mi0.68 mi19634-1312310-312310-320020(Top 70%)12461(Top 77%)12461(Top 1950%)
25K15.53 mi2.42 mi19243+39112137+17312137+17317445(Top 61%)11291(Top 70%)11291(Top 1767%)
30K18.64 mi3.11 mi18766+47711904+23311904+23316742(Top 59%)10813(Top 67%)10813(Top 1692%)
20M20.00 mi1.36 mi18603+16311804+10011804+10017001(Top 60%)10827(Top 67%)10827(Top 1694%)
21M21.00 mi1.00 mi18446+15711698+10611698+10616218(Top 57%)10353(Top 64%)10353(Top 1620%)
35K21.75 mi0.75 mi18496-5011708-1011708-1019159(Top 67%)11577(Top 72%)11577(Top 1812%)
23M23.00 mi1.25 mi18458+3811666+4211666+4218151(Top 64%)11046(Top 69%)11046(Top 1729%)
24M24.00 mi1.00 mi18452+611632+3411632+3418260(Top 64%)11042(Top 69%)11042(Top 1728%)
40K24.85 mi0.85 mi18402+5011581+5111581+5117330(Top 61%)10523(Top 65%)10523(Top 1647%)
25.2M25.20 mi0.35 mi18348+5411542+3911542+3914934(Top 53%)9391(Top 58%)9391(Top 1470%)
Finish26.22 mi1.02 mi18259+8911488+5411488+5415731(Top 55%)9820(Top 61%)9820(Top 1537%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 70%
×21stories
+97ft-345ft

Overall

19881

Males

12445

M65-69

12445

5K→10K

3.1 - 6.2 mi

Top 71%
×5stories
+79ft-138ft

Overall

20145

Males

12544

M65-69

12544

10K→15K

6.2 - 9.3 mi

Top 70%
×3stories
+67ft-78ft

Overall

19881

Males

12445

M65-69

12445

15K→20K

9.3 - 12.4 mi

Top 66%
×5stories
+106ft-86ft

Overall

18713

Males

11911

M65-69

11911

20K→Half

12.4 - 13.1 mi

Top 70%
×2stories
+19ft-37ft

Overall

20020

Males

12461

M65-69

12461

Half→25K

13.1 - 15.5 mi

Top 61%
×4stories
+66ft-88ft

Overall

17445

Males

11291

M65-69

11291

25K→30K

15.5 - 18.6 mi

Top 59%
×9stories
+181ft-148ft

Overall

16742

Males

10813

M65-69

10813

30K→20M

18.6 - 20.0 mi

Top 60%
×5stories
+64ft-50ft

Overall

17001

Males

10827

M65-69

10827

20M→21M

20.0 - 21.0 mi

Top 57%
×8stories
+106ft-24ft

Overall

16218

Males

10353

M65-69

10353

21M→35K

21.0 - 21.8 mi

Top 67%
×7stories
+17ft-86ft

Overall

19159

Males

11577

M65-69

11577

35K→23M

21.8 - 23.0 mi

Top 64%
×5stories
+23ft-63ft

Overall

18151

Males

11046

M65-69

11046

23M→24M

23.0 - 24.0 mi

Top 64%
×6stories
+12ft-82ft

Overall

18260

Males

11042

M65-69

11042

24M→40K

24.0 - 24.9 mi

Top 61%
×1story
+6ft-20ft

Overall

17330

Males

10523

M65-69

10523

40K→25.2M

24.9 - 25.2 mi

Top 53%
×1story
+13ft-16ft

Overall

14934

Males

9391

M65-69

9391

25.2M→Finish

25.2 - 26.2 mi

Top 55%
×2stories
+22ft-21ft

Overall

15731

Males

9820

M65-69

9820

Passing Analysis

Category:
Athletes Passed
2613
Passed By
1068
Net Change
+1545
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#19804
5K → 10K192361-169#19804#19973
10K → 15K200191+9#19973#19964
15K → 20K39148+343#19964#19621
20K → Half2740-13#19621#19634
Half → 25K41221+391#19634#19243
25K → 30K50528+477#19243#18766
30K → 20M18724+163#18766#18603
20M → 21M19033+157#18603#18446
21M → 35K3888-50#18446#18496
35K → 23M12486+38#18496#18458
23M → 24M8478+6#18458#18452
24M → 40K9040+50#18452#18402
40K → 25.2M595+54#18402#18348
25.2M → Finish11425+89#18348#18259
TOTALS26131068+1545
📊

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