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BOSTON MARATHON 2025

Dan Chamblee

Bib: 7960•M

NC

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 24%
Gender (Male)
#0 / 16105
Top 37%
Masters (Masters Men)
#0 / 10463
Top 24%
Division (M40-44)
#0 / 2247
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
22:03
Rank: #8597
Start → 5K
22:03 | 7:06/mi
10K· 6.21 mi
44:12
Rank: #8728 (-131)
5K → 10K
22:09 | 7:08/mi
15K· 9.32 mi
1:06:23
Rank: #8668 (+60)
10K → 15K
22:11 | 7:08/mi
20K· 12.43 mi
1:29:19
Rank: #8858 (-190)
15K → 20K
22:56 | 7:23/mi
Half· 13.11 mi
1:34:17
Rank: #8901 (-43)
20K → Half
4:58 | 7:17/mi
25K· 15.53 mi
1:51:53
Rank: #8692 (+209)
Half → 25K
17:36 | 7:16/mi
30K· 18.64 mi
2:14:37
Rank: #8191 (+501)
25K → 30K
22:44 | 7:19/mi
20M
2:24:30
Rank: #7936 (+255)
30K → 20M
9:53 | 7:16/mi
21M
2:32:05
Rank: #7696 (+240)
20M → 21M
7:35 | 7:35/mi
35K· 21.75 mi
2:37:07
Rank: #7482 (+214)
21M → 35K
5:02 | 6:44/mi
23M
2:45:59
Rank: #7210 (+272)
35K → 23M
8:52 | 7:05/mi
24M
2:52:56
Rank: #7043 (+167)
23M → 24M
6:57 | 6:57/mi
40K· 24.85 mi
2:58:58
Rank: #6875 (+168)
24M → 40K
6:02 | 7:03/mi
25.2M
3:01:41
Rank: #6822 (+53)
40K → 25.2M
2:43 | 7:53/mi
Finish· 26.22 mi
3:09:35
Rank: #6936 (-114)
25.2M → Finish
7:54 | 7:45/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:34:17
Pace7:12 /mi
2nd Half
Distance13.11 mi
Time1:35:18
Pace7:16 /mi
📊Positive Split: 1.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:30:0922:037:0622:03
7:06
-
10K
6.21 mi10:52:1844:127:0722:09
7:08
+0:02
15K
9.32 mi11:14:291:06:237:0722:11
7:08
0:00
20K
12.43 mi11:37:251:29:197:1122:56
7:23
+0:15
Half
13.11 mi11:42:231:34:177:124:58
7:17
-0:06
25K
15.53 mi11:59:591:51:537:1217:36
7:16
-0:01
30K
18.64 mi12:22:432:14:377:1322:44
7:19
+0:03
20M
20.00 mi12:32:362:24:307:139:53
7:16
-0:03
21M
21.00 mi12:40:112:32:057:157:35
7:35
+0:19
35K
21.75 mi12:45:132:37:077:135:02
6:44
-0:51
23M
23.00 mi12:54:052:45:597:138:52
7:05
+0:21
24M
24.00 mi13:01:022:52:567:126:57
6:57
-0:08
40K
24.85 mi13:07:042:58:587:126:02
7:03
+0:06
25.2M
25.20 mi13:09:473:01:417:132:43
7:53
+0:50
Finish
26.22 mi13:17:413:09:357:147:54
7:45
-0:08

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

6:44 /mi

Average Pace

7:14 /mi

Slowest Pace

7:53 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:51:23

90% of race

Time at Steady Pace

18:12

10% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:14 /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 mi10:30:0922:037:0622:03
7:06
#8597
10K
6.21 mi10:52:1844:127:0722:09
7:08
#8728
15K
9.32 mi11:14:291:06:237:0722:11
7:08
#8668
20K
12.43 mi11:37:251:29:197:1122:56
7:23
#8858
Half
13.11 mi11:42:231:34:177:124:58
7:17
#8901
25K
15.53 mi11:59:591:51:537:1217:36
7:16
#8692
30K
18.64 mi12:22:432:14:377:1322:44
7:19
#8191
20M
20.00 mi12:32:362:24:307:139:53
7:16
#7936
21M
21.00 mi12:40:112:32:057:157:35
7:35
#7696
35K
21.75 mi12:45:132:37:077:135:02
6:44
#7482
23M
23.00 mi12:54:052:45:597:138:52
7:05
#7210
24M
24.00 mi13:01:022:52:567:126:57
6:57
#7043
40K
24.85 mi13:07:042:58:587:126:02
7:03
#6875
25.2M
25.20 mi13:09:473:01:417:132:43
7:53
#6822
Finish
26.22 mi13:17:413:09:357:147:54
7:45
#6936
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi8597737473748610(Top 30%)7315(Top 45%)7315(Top 326%)
10K6.21 mi3.10 mi8728-1317436-627436-628893(Top 31%)7531(Top 47%)7531(Top 335%)
15K9.32 mi3.11 mi8668+607385+517385+518610(Top 30%)7315(Top 45%)7315(Top 326%)
20K12.43 mi3.11 mi8858-1907478-937478-939706(Top 34%)7845(Top 49%)7845(Top 349%)
Half13.11 mi0.68 mi8901-437501-237501-239720(Top 34%)7848(Top 49%)7848(Top 349%)
25K15.53 mi2.42 mi8692+2097353+1487353+1488032(Top 28%)6775(Top 42%)6775(Top 302%)
30K18.64 mi3.11 mi8191+5016985+3686985+3686534(Top 23%)5670(Top 35%)5670(Top 252%)
20M20.00 mi1.36 mi7936+2556790+1956790+1955610(Top 20%)4910(Top 30%)4910(Top 219%)
21M21.00 mi1.00 mi7696+2406617+1736617+1735025(Top 18%)4392(Top 27%)4392(Top 195%)
35K21.75 mi0.75 mi7482+2146446+1716446+1713680(Top 13%)3327(Top 21%)3327(Top 148%)
23M23.00 mi1.25 mi7210+2726231+2156231+2154233(Top 15%)3762(Top 23%)3762(Top 167%)
24M24.00 mi1.00 mi7043+1676092+1396092+1394347(Top 15%)3799(Top 24%)3799(Top 169%)
40K24.85 mi0.85 mi6875+1685958+1345958+1344209(Top 15%)3646(Top 23%)3646(Top 162%)
25.2M25.20 mi0.35 mi6822+535908+505908+505250(Top 18%)4271(Top 27%)4271(Top 190%)
Finish26.22 mi1.02 mi6936-1145952-445952-4411032(Top 39%)7509(Top 47%)7509(Top 334%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 30%
×21stories
+97ft-345ft

Overall

8610

Males

7315

M40-44

7315

5K→10K

3.1 - 6.2 mi

Top 31%
×5stories
+79ft-138ft

Overall

8893

Males

7531

M40-44

7531

10K→15K

6.2 - 9.3 mi

Top 30%
×3stories
+67ft-78ft

Overall

8610

Males

7315

M40-44

7315

15K→20K

9.3 - 12.4 mi

Top 34%
×5stories
+106ft-86ft

Overall

9706

Males

7845

M40-44

7845

20K→Half

12.4 - 13.1 mi

Top 34%
×2stories
+19ft-37ft

Overall

9720

Males

7848

M40-44

7848

Half→25K

13.1 - 15.5 mi

Top 28%
×4stories
+66ft-88ft

Overall

8032

Males

6775

M40-44

6775

25K→30K

15.5 - 18.6 mi

Top 23%
×9stories
+181ft-148ft

Overall

6534

Males

5670

M40-44

5670

30K→20M

18.6 - 20.0 mi

Top 20%
×5stories
+64ft-50ft

Overall

5610

Males

4910

M40-44

4910

20M→21M

20.0 - 21.0 mi

Top 18%
×8stories
+106ft-24ft

Overall

5025

Males

4392

M40-44

4392

21M→35K

21.0 - 21.8 mi

Top 13%
×7stories
+17ft-86ft

Overall

3680

Males

3327

M40-44

3327

35K→23M

21.8 - 23.0 mi

Top 15%
×5stories
+23ft-63ft

Overall

4233

Males

3762

M40-44

3762

23M→24M

23.0 - 24.0 mi

Top 15%
×6stories
+12ft-82ft

Overall

4347

Males

3799

M40-44

3799

24M→40K

24.0 - 24.9 mi

Top 15%
×1story
+6ft-20ft

Overall

4209

Males

3646

M40-44

3646

40K→25.2M

24.9 - 25.2 mi

Top 18%
×1story
+13ft-16ft

Overall

5250

Males

4271

M40-44

4271

25.2M→Finish

25.2 - 26.2 mi

Top 39%
×2stories
+22ft-21ft

Overall

11032

Males

7509

M40-44

7509

Passing Analysis

Category:
Athletes Passed
2672
Passed By
1011
Net Change
+1661
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#8597
5K → 10K143274-131#8597#8728
10K → 15K192132+60#8728#8668
15K → 20K123313-190#8668#8858
20K → Half1558-43#8858#8901
Half → 25K25546+209#8901#8692
25K → 30K52019+501#8692#8191
30K → 20M2605+255#8191#7936
20M → 21M2477+240#7936#7696
21M → 35K2140+214#7696#7482
35K → 23M2720+272#7482#7210
23M → 24M1714+167#7210#7043
24M → 40K1746+168#7043#6875
40K → 25.2M574+53#6875#6822
25.2M → Finish29143-114#6822#6936
TOTALS26721011+1661
📊

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