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BOSTON MARATHON 2025

Chris Dunn

Bib: 4350•X

ME

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 23%
Gender (Other)
#0 / 71
Top 24%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
22:18
Rank: #9264
Start → 5K
22:18 | 7:11/mi
10K· 6.21 mi
44:44
Rank: #9439 (-175)
5K → 10K
22:26 | 7:13/mi
15K· 9.32 mi
1:06:50
Rank: #9063 (+376)
10K → 15K
22:06 | 7:07/mi
20K· 12.43 mi
1:28:51
Rank: #8534 (+529)
15K → 20K
22:01 | 7:05/mi
Half· 13.11 mi
1:33:34
Rank: #8429 (+105)
20K → Half
4:43 | 6:55/mi
25K· 15.53 mi
1:50:34
Rank: #8052 (+377)
Half → 25K
17:00 | 7:01/mi
30K· 18.64 mi
2:12:36
Rank: #7433 (+619)
25K → 30K
22:02 | 7:06/mi
20M
2:22:27
Rank: #7204 (+229)
30K → 20M
9:51 | 7:15/mi
21M
2:29:55
Rank: #6976 (+228)
20M → 21M
7:28 | 7:28/mi
35K· 21.75 mi
2:35:29
Rank: #6994 (-18)
21M → 35K
5:34 | 7:26/mi
23M
2:45:14
Rank: #7002 (-8)
35K → 23M
9:45 | 7:47/mi
24M
2:52:30
Rank: #6917 (+85)
23M → 24M
7:16 | 7:16/mi
40K· 24.85 mi
2:59:05
Rank: #6917
24M → 40K
6:35 | 7:42/mi
25.2M
3:01:49
Rank: #6857 (+60)
40K → 25.2M
2:44 | 7:56/mi
Finish· 26.22 mi
3:08:39
Rank: #6668 (+189)
25.2M → Finish
6:50 | 6:42/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:33:34
Pace7:08 /mi
2nd Half
Distance13.11 mi
Time1:35:05
Pace7:15 /mi
📊Positive Split: 1.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:52:1222:187:1122:18
7:11
-
10K
6.21 mi11:14:3844:447:1222:26
7:13
+0:02
15K
9.32 mi11:36:441:06:507:1022:06
7:07
-0:06
20K
12.43 mi11:58:451:28:517:0922:01
7:05
-0:02
Half
13.11 mi12:03:281:33:347:084:43
6:55
-0:10
25K
15.53 mi12:20:281:50:347:0717:00
7:01
+0:06
30K
18.64 mi12:42:302:12:367:0722:02
7:06
+0:05
20M
20.00 mi12:52:212:22:277:079:51
7:15
+0:09
21M
21.00 mi12:59:492:29:557:087:28
7:28
+0:13
35K
21.75 mi13:05:232:35:297:095:34
7:26
-0:02
23M
23.00 mi13:15:082:45:147:119:45
7:47
+0:21
24M
24.00 mi13:22:242:52:307:117:16
7:16
-0:31
40K
24.85 mi13:28:592:59:057:126:35
7:42
+0:26
25.2M
25.20 mi13:31:433:01:497:132:44
7:56
+0:14
Finish
26.22 mi13:38:333:08:397:126:50
6:42
-1:14

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

6:42 /mi

Average Pace

7:12 /mi

Slowest Pace

7:56 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:36:33

83% of race

Time at Steady Pace

29:22

16% of race

Time at Slower Pace

2:44

1% of race

Average Pace: 7:12 /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 mi10:52:1222:187:1122:18
7:11
#9264
10K
6.21 mi11:14:3844:447:1222:26
7:13
#9439
15K
9.32 mi11:36:441:06:507:1022:06
7:07
#9063
20K
12.43 mi11:58:451:28:517:0922:01
7:05
#8534
Half
13.11 mi12:03:281:33:347:084:43
6:55
#8429
25K
15.53 mi12:20:281:50:347:0717:00
7:01
#8052
30K
18.64 mi12:42:302:12:367:0722:02
7:06
#7433
20M
20.00 mi12:52:212:22:277:079:51
7:15
#7204
21M
21.00 mi12:59:492:29:557:087:28
7:28
#6976
35K
21.75 mi13:05:232:35:297:095:34
7:26
#6994
23M
23.00 mi13:15:082:45:147:119:45
7:47
#7002
24M
24.00 mi13:22:242:52:307:117:16
7:16
#6917
40K
24.85 mi13:28:592:59:057:126:35
7:42
#6917
25.2M
25.20 mi13:31:433:01:497:132:44
7:56
#6857
Finish
26.22 mi13:38:333:08:397:126:50
6:42
#6668
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallXAge DivSeg. OverallSeg. XSeg. Age Div
5K3.11 mi3.11 mi926422228405(Top 30%)24(Top 34%)24
10K6.21 mi3.10 mi9439-17525-325-39639(Top 34%)28(Top 39%)28
15K9.32 mi3.11 mi9063+37623+223+28405(Top 30%)24(Top 34%)24
20K12.43 mi3.11 mi8534+52922+122+17426(Top 26%)19(Top 27%)19
Half13.11 mi0.68 mi8429+10522226905(Top 24%)18(Top 25%)18
25K15.53 mi2.42 mi8052+37722226378(Top 22%)18(Top 25%)18
30K18.64 mi3.11 mi7433+61919+319+35254(Top 18%)14(Top 20%)14
20M20.00 mi1.36 mi7204+22919195452(Top 19%)15(Top 21%)15
21M21.00 mi1.00 mi6976+22818+118+14402(Top 15%)14(Top 20%)14
35K21.75 mi0.75 mi6994-1817+117+18131(Top 29%)20(Top 28%)20
23M23.00 mi1.25 mi7002-817178452(Top 30%)21(Top 30%)21
24M24.00 mi1.00 mi6917+8517176176(Top 22%)17(Top 24%)17
40K24.85 mi0.85 mi691718-118-18022(Top 28%)24(Top 34%)24
25.2M25.20 mi0.35 mi6857+6018185434(Top 19%)17(Top 24%)17
Finish26.22 mi1.02 mi6668+18917+117+13853(Top 14%)13(Top 18%)13

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 30%
×21stories
+97ft-345ft

Overall

8405

X

24

Age Div

24

5K→10K

3.1 - 6.2 mi

Top 34%
×5stories
+79ft-138ft

Overall

9639

X

28

Age Div

28

10K→15K

6.2 - 9.3 mi

Top 30%
×3stories
+67ft-78ft

Overall

8405

X

24

Age Div

24

15K→20K

9.3 - 12.4 mi

Top 26%
×5stories
+106ft-86ft

Overall

7426

X

19

Age Div

19

20K→Half

12.4 - 13.1 mi

Top 24%
×2stories
+19ft-37ft

Overall

6905

X

18

Age Div

18

Half→25K

13.1 - 15.5 mi

Top 22%
×4stories
+66ft-88ft

Overall

6378

X

18

Age Div

18

25K→30K

15.5 - 18.6 mi

Top 18%
×9stories
+181ft-148ft

Overall

5254

X

14

Age Div

14

30K→20M

18.6 - 20.0 mi

Top 19%
×5stories
+64ft-50ft

Overall

5452

X

15

Age Div

15

20M→21M

20.0 - 21.0 mi

Top 15%
×8stories
+106ft-24ft

Overall

4402

X

14

Age Div

14

21M→35K

21.0 - 21.8 mi

Top 29%
×7stories
+17ft-86ft

Overall

8131

X

20

Age Div

20

35K→23M

21.8 - 23.0 mi

Top 30%
×5stories
+23ft-63ft

Overall

8452

X

21

Age Div

21

23M→24M

23.0 - 24.0 mi

Top 22%
×6stories
+12ft-82ft

Overall

6176

X

17

Age Div

17

24M→40K

24.0 - 24.9 mi

Top 28%
×1story
+6ft-20ft

Overall

8022

X

24

Age Div

24

40K→25.2M

24.9 - 25.2 mi

Top 19%
×1story
+13ft-16ft

Overall

5434

X

17

Age Div

17

25.2M→Finish

25.2 - 26.2 mi

Top 14%
×2stories
+22ft-21ft

Overall

3853

X

13

Age Div

13

Passing Analysis

Category:
Athletes Passed
3252
Passed By
656
Net Change
+2596
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#9264
5K → 10K159334-175#9264#9439
10K → 15K41236+376#9439#9063
15K → 20K5345+529#9063#8534
20K → Half1050+105#8534#8429
Half → 25K3847+377#8429#8052
25K → 30K6212+619#8052#7433
30K → 20M2345+229#7433#7204
20M → 21M2379+228#7204#6976
21M → 35K4563-18#6976#6994
35K → 23M8896-8#6994#7002
23M → 24M11328+85#7002#6917
24M → 40K62620#6917#6917
40K → 25.2M644+60#6917#6857
25.2M → Finish1945+189#6857#6668
TOTALS3252656+2596
📊

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