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BOSTON MARATHON 2025

Conner Ascher

Bib: 27374•M

CA

0:00
0:00
/ mi
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Overall
#0 / 28404
Gender (Male)
#0 / 16105
Division (M18-39)
#0 / 5642
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
27:02
Rank: #21024
Start → 5K
8:42/mi
27:02 split
10K· 6.21 mi
54:20
Rank: #21130 (-106)
5K → 10K
8:47/mi
27:18 split
15K· 9.32 mi
1:22:08
Rank: #21335 (-205)
10K → 15K
8:57/mi
27:48 split
20K· 12.43 mi
1:51:18
Rank: #21734 (-399)
15K → 20K
9:23/mi
29:10 split
Half· 13.11 mi
1:57:50
Rank: #21861 (-127)
20K → Half
9:35/mi
6:32 split
25K· 15.53 mi
2:22:23
Rank: #22311 (-450)
Half → 25K
10:08/mi
24:33 split
30K· 18.64 mi
2:57:01
Rank: #22790 (-479)
25K → 30K
11:09/mi
34:38 split
20M
3:12:28
Rank: #22918 (-128)
30K → 20M
11:22/mi
15:27 split
21M
3:25:09
Rank: #23070 (-152)
20M → 21M
12:41/mi
12:41 split
35K· 21.75 mi
3:33:06
Rank: #23075 (-5)
21M → 35K
10:38/mi
7:57 split
23M
3:46:35
Rank: #23054 (+21)
35K → 23M
10:46/mi
13:29 split
24M
3:57:17
Rank: #23064 (-10)
23M → 24M
10:42/mi
10:42 split
40K· 24.85 mi
4:06:33
Rank: #23038 (+26)
24M → 40K
10:50/mi
9:16 split
25.2M
4:10:35
Rank: #23049 (-11)
40K → 25.2M
11:42/mi
4:02 split
Finish· 26.22 mi
4:23:07
Rank: #23281 (-232)
25.2M → Finish
12:18/mi
12:32 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:57:50
Pace8:59 /mi
2nd Half
Distance13.11 mi
Time2:25:17
Pace11:05 /mi
📊Positive Split: 23.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:53:2527:028:4227:02
8:42
-
10K
6.21 mi12:20:4354:208:4527:18
8:47
+0:05
15K
9.32 mi12:48:311:22:088:4927:48
8:57
+0:10
20K
12.43 mi13:17:411:51:188:5729:10
9:23
+0:26
Half
13.11 mi13:24:131:57:508:596:32
9:35
+0:12
25K
15.53 mi13:48:462:22:239:1024:33
10:08
+0:33
30K
18.64 mi14:23:242:57:019:3034:38
11:09
+1:01
20M
20.00 mi14:38:513:12:289:3715:27
11:22
+0:13
21M
21.00 mi14:51:323:25:099:4612:41
12:41
+1:19
35K
21.75 mi14:59:293:33:069:487:57
10:38
-2:03
23M
23.00 mi15:12:583:46:359:5113:29
10:46
+0:08
24M
24.00 mi15:23:403:57:179:5310:42
10:42
-0:04
40K
24.85 mi15:32:564:06:339:559:16
10:50
+0:08
25.2M
25.20 mi15:36:584:10:359:574:02
11:42
+0:52
Finish
26.22 mi15:49:304:23:0710:0312:32
12:18
+0:36

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

8:42 /mi

Average Pace

10:03 /mi

Slowest Pace

12:41 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:57:50

45% of race

Time at Steady Pace

1:40:35

38% of race

Time at Slower Pace

44:42

17% of race

Average Pace: 10:02 /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 mi11:53:2527:028:4227:02
8:42
#21024
10K
6.21 mi12:20:4354:208:4527:18
8:47
#21130
15K
9.32 mi12:48:311:22:088:4927:48
8:57
#21335
20K
12.43 mi13:17:411:51:188:5729:10
9:23
#21734
Half
13.11 mi13:24:131:57:508:596:32
9:35
#21861
25K
15.53 mi13:48:462:22:239:1024:33
10:08
#22311
30K
18.64 mi14:23:242:57:019:3034:38
11:09
#22790
20M
20.00 mi14:38:513:12:289:3715:27
11:22
#22918
21M
21.00 mi14:51:323:25:099:4612:41
12:41
#23070
35K
21.75 mi14:59:293:33:069:487:57
10:38
#23075
23M
23.00 mi15:12:583:46:359:5113:29
10:46
#23054
24M
24.00 mi15:23:403:57:179:5310:42
10:42
#23064
40K
24.85 mi15:32:564:06:339:559:16
10:50
#23038
25.2M
25.20 mi15:36:584:10:359:574:02
11:42
#23049
Finish
26.22 mi15:49:304:23:0710:0312:32
12:18
#23281
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi21024128711287121788(Top 77%)13303(Top 83%)13303(Top 236%)
10K6.21 mi3.10 mi21130-10612953-8212953-8221344(Top 75%)13066(Top 81%)13066(Top 232%)
15K9.32 mi3.11 mi21335-20513062-10913062-10921788(Top 77%)13303(Top 83%)13303(Top 236%)
20K12.43 mi3.11 mi21734-39913219-15713219-15722535(Top 79%)13594(Top 84%)13594(Top 241%)
Half13.11 mi0.68 mi21861-12713276-5713276-5723768(Top 84%)14127(Top 88%)14127(Top 250%)
25K15.53 mi2.42 mi22311-45013486-21013486-21023554(Top 83%)13984(Top 87%)13984(Top 248%)
30K18.64 mi3.11 mi22790-47913667-18113667-18124288(Top 86%)14206(Top 88%)14206(Top 252%)
20M20.00 mi1.36 mi22918-12813691-2413691-2424304(Top 86%)14125(Top 88%)14125(Top 250%)
21M21.00 mi1.00 mi23070-15213747-5613747-5624648(Top 87%)14212(Top 88%)14212(Top 252%)
35K21.75 mi0.75 mi23075-513735+1213735+1223424(Top 82%)13602(Top 84%)13602(Top 241%)
23M23.00 mi1.25 mi23054+2113702+3313702+3322676(Top 80%)13190(Top 82%)13190(Top 234%)
24M24.00 mi1.00 mi23064-1013678+2413678+2423313(Top 82%)13465(Top 84%)13465(Top 239%)
40K24.85 mi0.85 mi23038+2613652+2613652+2622761(Top 80%)13121(Top 81%)13121(Top 233%)
25.2M25.20 mi0.35 mi23049-11136521365222540(Top 79%)13055(Top 81%)13055(Top 231%)
Finish26.22 mi1.02 mi23281-23213753-10113753-10127113(Top 95%)15367(Top 95%)15367(Top 272%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 77%
×21stories
+97ft-345ft

Overall

21788

Males

13303

M18-39

13303

5K→10K

3.1 - 6.2 mi

Top 75%
×5stories
+79ft-138ft

Overall

21344

Males

13066

M18-39

13066

10K→15K

6.2 - 9.3 mi

Top 77%
×3stories
+67ft-78ft

Overall

21788

Males

13303

M18-39

13303

15K→20K

9.3 - 12.4 mi

Top 79%
×5stories
+106ft-86ft

Overall

22535

Males

13594

M18-39

13594

20K→Half

12.4 - 13.1 mi

Top 84%
×2stories
+19ft-37ft

Overall

23768

Males

14127

M18-39

14127

Half→25K

13.1 - 15.5 mi

Top 83%
×4stories
+66ft-88ft

Overall

23554

Males

13984

M18-39

13984

25K→30K

15.5 - 18.6 mi

Top 86%
×9stories
+181ft-148ft

Overall

24288

Males

14206

M18-39

14206

30K→20M

18.6 - 20.0 mi

Top 86%
×5stories
+64ft-50ft

Overall

24304

Males

14125

M18-39

14125

20M→21M

20.0 - 21.0 mi

Top 87%
×8stories
+106ft-24ft

Overall

24648

Males

14212

M18-39

14212

21M→35K

21.0 - 21.8 mi

Top 82%
×7stories
+17ft-86ft

Overall

23424

Males

13602

M18-39

13602

35K→23M

21.8 - 23.0 mi

Top 80%
×5stories
+23ft-63ft

Overall

22676

Males

13190

M18-39

13190

23M→24M

23.0 - 24.0 mi

Top 82%
×6stories
+12ft-82ft

Overall

23313

Males

13465

M18-39

13465

24M→40K

24.0 - 24.9 mi

Top 80%
×1story
+6ft-20ft

Overall

22761

Males

13121

M18-39

13121

40K→25.2M

24.9 - 25.2 mi

Top 79%
×1story
+13ft-16ft

Overall

22540

Males

13055

M18-39

13055

25.2M→Finish

25.2 - 26.2 mi

Top 95%
×2stories
+22ft-21ft

Overall

27113

Males

15367

M18-39

15367

Passing Analysis

Category:
Athletes Passed
903
Passed By
3160
Net Change
-2257
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#21024
5K → 10K225331-106#21024#21130
10K → 15K147352-205#21130#21335
15K → 20K92491-399#21335#21734
20K → Half11138-127#21734#21861
Half → 25K44494-450#21861#22311
25K → 30K65544-479#22311#22790
30K → 20M43171-128#22790#22918
20M → 21M30182-152#22918#23070
21M → 35K4045-5#23070#23075
35K → 23M7352+21#23075#23054
23M → 24M5666-10#23054#23064
24M → 40K5832+26#23064#23038
40K → 25.2M1425-11#23038#23049
25.2M → Finish5237-232#23049#23281
TOTALS9033160-2257
📊

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