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BOSTON MARATHON 2025

Casey Mcnamara

Bib: 26453•F

NY

0:00
0:00
/ mi
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Division (F18-39)
#0 / 5469
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
10:04/mi
31:16
↑ 97↓ 3451.5%
10K· 6.21 mi
10:29/mi
1:03:49
↑ 79↓ 1380.4%
15K· 9.32 mi
11:07/mi
1:38:20
↑ 67↓ 78
20K· 12.43 mi
12:06/mi
2:15:57
↑ 106↓ 860.1%
Half· 13.11 mi
10:11/mi
2:22:54
↑ 19↓ 370.5%
25K· 15.53 mi
13:30/mi
2:55:39
↑ 66↓ 880.2%
30K· 18.64 mi
13:30/mi
3:37:36
↑ 181↓ 1480.2%
20M
14:51/mi
3:57:47
↑ 64↓ 500.2%
21M
16:41/mi
4:14:28
↑ 106↓ 241.6%
35K· 21.75 mi
13:27/mi
4:24:32
↑ 17↓ 861.7%
23M
14:47/mi
4:43:03
↑ 23↓ 630.6%
24M
14:15/mi
4:57:18
↓ 821.3%
40K· 24.85 mi
13:09/mi
5:08:33
↓ 200.3%
25.2M
14:56/mi
5:13:42
↑ 13↓ 160.2%
Finish· 26.22 mi
11:49/mi
5:25:45
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:22:54
Pace10:54 /mi
2nd Half
Distance13.11 mi
Time3:02:51
Pace13:57 /mi
📊Positive Split: 28.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:49:4531:1610:0431:16
10:04
-
10K
6.21 mi12:22:181:03:4910:1632:33
10:29
+0:25
15K
9.32 mi12:56:491:38:2010:3334:31
11:07
+0:38
20K
12.43 mi13:34:262:15:5710:5637:37
12:06
+0:59
Half
13.11 mi13:41:232:22:5410:546:57
10:11
-1:55
25K
15.53 mi14:14:082:55:3911:1832:45
13:30
+3:19
30K
18.64 mi14:56:053:37:3611:4041:57
13:30
0:00
20M
20.00 mi15:16:163:57:4711:5320:11
14:51
+1:21
21M
21.00 mi15:32:574:14:2812:0716:41
16:41
+1:50
35K
21.75 mi15:43:014:24:3212:1010:04
13:27
-3:14
23M
23.00 mi16:01:324:43:0312:1818:31
14:47
+1:20
24M
24.00 mi16:15:474:57:1812:2314:15
14:15
-0:32
40K
24.85 mi16:27:025:08:3312:2511:15
13:09
-1:06
25.2M
25.20 mi16:32:115:13:4212:275:09
14:56
+1:47
Finish
26.22 mi16:44:145:25:4512:2612:03
11:49
-3:07

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

10:04 /mi

Average Pace

12:26 /mi

Slowest Pace

16:41 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:34:57

48% of race

Time at Steady Pace

1:50:16

34% of race

Time at Slower Pace

1:00:32

19% of race

Average Pace: 12:25 /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 mi11:49:4531:1610:0431:16
10:04
#25737
10K
6.21 mi12:22:181:03:4910:1632:33
10:29
#26043
15K
9.32 mi12:56:491:38:2010:3334:31
11:07
#26370
20K
12.43 mi13:34:262:15:5710:5637:37
12:06
#26701
Half
13.11 mi13:41:232:22:5410:546:57
10:11
#26625
25K
15.53 mi14:14:082:55:3911:1832:45
13:30
#26923
30K
18.64 mi14:56:053:37:3611:4041:57
13:30
#26988
20M
20.00 mi15:16:163:57:4711:5320:11
14:51
#27076
21M
21.00 mi15:32:574:14:2812:0716:41
16:41
#27170
35K
21.75 mi15:43:014:24:3212:1010:04
13:27
#27184
23M
23.00 mi16:01:324:43:0312:1818:31
14:47
#27255
24M
24.00 mi16:15:474:57:1812:2314:15
14:15
#27303
40K
24.85 mi16:27:025:08:3312:2511:15
13:09
#27290
25.2M
25.20 mi16:32:115:13:4212:275:09
14:56
#27290
Finish
26.22 mi16:44:145:25:4512:2612:03
11:49
#27278
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi25737106111061126815(Top 94%)11264(Top 92%)11264(Top 206%)
10K6.21 mi3.10 mi26043-30610802-19110802-19126225(Top 92%)10920(Top 89%)10920(Top 200%)
15K9.32 mi3.11 mi26370-32710985-18310985-18326815(Top 94%)11264(Top 92%)11264(Top 206%)
20K12.43 mi3.11 mi26701-33111178-19311178-19327211(Top 96%)11526(Top 94%)11526(Top 211%)
Half13.11 mi0.68 mi26625+7611140+3811140+3825217(Top 89%)10392(Top 85%)10392(Top 190%)
25K15.53 mi2.42 mi26923-29811333-19311333-19327619(Top 97%)11785(Top 96%)11785(Top 215%)
30K18.64 mi3.11 mi26988-6511386-5311386-5327140(Top 96%)11578(Top 95%)11578(Top 212%)
20M20.00 mi1.36 mi27076-8811448-6211448-6227798(Top 98%)11968(Top 98%)11968(Top 219%)
21M21.00 mi1.00 mi27170-9411511-6311511-6328073(Top 99%)12095(Top 99%)12095(Top 221%)
35K21.75 mi0.75 mi27184-1411530-1911530-1927324(Top 96%)11753(Top 96%)11753(Top 215%)
23M23.00 mi1.25 mi27255-7111584-5411584-5427818(Top 98%)12008(Top 98%)12008(Top 220%)
24M24.00 mi1.00 mi27303-4811617-3311617-3327769(Top 98%)12016(Top 98%)12016(Top 220%)
40K24.85 mi0.85 mi27290+1311611+611611+626443(Top 93%)11355(Top 93%)11355(Top 208%)
25.2M25.20 mi0.35 mi2729011610+111610+127062(Top 95%)11694(Top 96%)11694(Top 214%)
Finish26.22 mi1.02 mi27278+1211612-211612-226569(Top 94%)11422(Top 93%)11422(Top 209%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 94%
×21story building
+97ft-345ft

Overall

26815

Females

11264

F18-39

11264

5K→10K

3.1 - 6.2 mi

Top 92%
×5story building
+79ft-138ft

Overall

26225

Females

10920

F18-39

10920

10K→15K

6.2 - 9.3 mi

Top 94%
×3story building
+67ft-78ft

Overall

26815

Females

11264

F18-39

11264

15K→20K

9.3 - 12.4 mi

Top 96%
×5story building
+106ft-86ft

Overall

27211

Females

11526

F18-39

11526

20K→Half

12.4 - 13.1 mi

Top 89%
×2story building
+19ft-37ft

Overall

25217

Females

10392

F18-39

10392

Half→25K

13.1 - 15.5 mi

Top 97%
×4story building
+66ft-88ft

Overall

27619

Females

11785

F18-39

11785

25K→30K

15.5 - 18.6 mi

Top 96%
×9story building
+181ft-148ft

Overall

27140

Females

11578

F18-39

11578

30K→20M

18.6 - 20.0 mi

Top 98%
×5story building
+64ft-50ft

Overall

27798

Females

11968

F18-39

11968

20M→21M

20.0 - 21.0 mi

Top 99%
×8story building
+106ft-24ft

Overall

28073

Females

12095

F18-39

12095

21M→35K

21.0 - 21.8 mi

Top 96%
×7story building
+17ft-86ft

Overall

27324

Females

11753

F18-39

11753

35K→23M

21.8 - 23.0 mi

Top 98%
×5story building
+23ft-63ft

Overall

27818

Females

12008

F18-39

12008

23M→24M

23.0 - 24.0 mi

Top 98%
×6story building
+12ft-82ft

Overall

27769

Females

12016

F18-39

12016

24M→40K

24.0 - 24.9 mi

Top 93%
×1story
+6ft-20ft

Overall

26443

Females

11355

F18-39

11355

40K→25.2M

24.9 - 25.2 mi

Top 95%
×1story
+13ft-16ft

Overall

27062

Females

11694

F18-39

11694

25.2M→Finish

25.2 - 26.2 mi

Top 94%
×2story building
+22ft-21ft

Overall

26569

Females

11422

F18-39

11422

Passing Analysis

Category:
Athletes Passed
425
Passed By
1966
Net Change
-1541
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#25737
5K → 10K95401-306#25737#26043
10K → 15K49376-327#26043#26370
15K → 20K29360-331#26370#26701
20K → Half771+76#26701#26625
Half → 25K16314-298#26625#26923
25K → 30K57122-65#26923#26988
30K → 20M13101-88#26988#27076
20M → 21M6100-94#27076#27170
21M → 35K1327-14#27170#27184
35K → 23M778-71#27184#27255
23M → 24M856-48#27255#27303
24M → 40K2714+13#27303#27290
40K → 25.2M660#27290#27290
25.2M → Finish2210+12#27290#27278
TOTALS4251966-1541
📊

Passing Visuals

Category:
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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