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BOSTON MARATHON 2025

Cassandra Ford

Bib: 20851•F

RI

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Masters (Masters Women)
#0 / 6759
Top 46%
Division (F40-44)
#0 / 1718
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
8:08/mi
25:15
↑ 97↓ 3451.5%
10K· 6.21 mi
8:09/mi
50:33
↑ 79↓ 1380.4%
15K· 9.32 mi
8:11/mi
1:16:00
↑ 67↓ 78
20K· 12.43 mi
8:18/mi
1:41:47
↑ 106↓ 860.1%
Half· 13.11 mi
8:39/mi
1:47:41
↑ 19↓ 370.5%
25K· 15.53 mi
8:33/mi
2:08:26
↑ 66↓ 880.2%
30K· 18.64 mi
9:04/mi
2:36:36
↑ 181↓ 1480.2%
20M
9:56/mi
2:50:06
↑ 64↓ 500.2%
21M
11:44/mi
3:01:50
↑ 106↓ 241.6%
35K· 21.75 mi
8:56/mi
3:08:31
↑ 17↓ 861.7%
23M
9:35/mi
3:20:31
↑ 23↓ 630.6%
24M
8:53/mi
3:29:24
↓ 821.3%
40K· 24.85 mi
9:35/mi
3:37:36
↓ 200.3%
25.2M
9:34/mi
3:40:54
↑ 13↓ 160.2%
Finish· 26.22 mi
8:55/mi
3:49:59
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:47:41
Pace8:13 /mi
2nd Half
Distance13.11 mi
Time2:02:18
Pace9:20 /mi
📊Positive Split: 13.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:18:1325:158:0825:15
8:08
-
10K
6.21 mi11:43:3150:338:0825:18
8:09
+0:01
15K
9.32 mi12:08:581:16:008:0925:27
8:11
+0:02
20K
12.43 mi12:34:451:41:478:1125:47
8:18
+0:07
Half
13.11 mi12:40:391:47:418:135:54
8:39
+0:21
25K
15.53 mi13:01:242:08:268:1620:45
8:33
-0:06
30K
18.64 mi13:29:342:36:368:2428:10
9:04
+0:31
20M
20.00 mi13:43:042:50:068:3013:30
9:56
+0:52
21M
21.00 mi13:54:483:01:508:4011:44
11:44
+1:48
35K
21.75 mi14:01:293:08:318:406:41
8:56
-2:48
23M
23.00 mi14:13:293:20:318:4312:00
9:35
+0:39
24M
24.00 mi14:22:223:29:248:448:53
8:53
-0:42
40K
24.85 mi14:30:343:37:368:458:12
9:35
+0:42
25.2M
25.20 mi14:33:523:40:548:463:18
9:34
-0:01
Finish
26.22 mi14:42:573:49:598:479:05
8:55
-0:39

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

8:08 /mi

Average Pace

8:47 /mi

Slowest Pace

11:44 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:41:47

44% of race

Time at Steady Pace

1:19:28

35% of race

Time at Slower Pace

48:44

21% 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 mi11:18:1325:158:0825:15
8:08
#17569
10K
6.21 mi11:43:3150:338:0825:18
8:09
#17536
15K
9.32 mi12:08:581:16:008:0925:27
8:11
#17450
20K
12.43 mi12:34:451:41:478:1125:47
8:18
#17283
Half
13.11 mi12:40:391:47:418:135:54
8:39
#17426
25K
15.53 mi13:01:242:08:268:1620:45
8:33
#17400
30K
18.64 mi13:29:342:36:368:2428:10
9:04
#17473
20M
20.00 mi13:43:042:50:068:3013:30
9:56
#17816
21M
21.00 mi13:54:483:01:508:4011:44
11:44
#18357
35K
21.75 mi14:01:293:08:318:406:41
8:56
#18342
23M
23.00 mi14:13:293:20:318:4312:00
9:35
#18386
24M
24.00 mi14:22:223:29:248:448:53
8:53
#18290
40K
24.85 mi14:30:343:37:368:458:12
9:35
#18351
25.2M
25.20 mi14:33:523:40:548:463:18
9:34
#18285
Finish
26.22 mi14:42:573:49:598:479:05
8:55
#18317
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi175696076607617349(Top 61%)5928(Top 48%)5928(Top 345%)
10K6.21 mi3.10 mi17536+336062+146062+1417508(Top 62%)6003(Top 49%)6003(Top 349%)
15K9.32 mi3.11 mi17450+865978+845978+8417349(Top 61%)5928(Top 48%)5928(Top 345%)
20K12.43 mi3.11 mi17283+1675907+715907+7116945(Top 60%)5747(Top 47%)5747(Top 335%)
Half13.11 mi0.68 mi17426-1435996-895996-8920070(Top 71%)7510(Top 61%)7510(Top 437%)
25K15.53 mi2.42 mi17400+265999-35999-317549(Top 62%)6167(Top 50%)6167(Top 359%)
30K18.64 mi3.11 mi17473-736104-1056104-10518016(Top 63%)6579(Top 54%)6579(Top 383%)
20M20.00 mi1.36 mi17816-3436323-2196323-21920718(Top 73%)8199(Top 67%)8199(Top 477%)
21M21.00 mi1.00 mi18357-5416639-3166639-31623097(Top 81%)9537(Top 78%)9537(Top 555%)
35K21.75 mi0.75 mi18342+156647-86647-817941(Top 63%)6867(Top 56%)6867(Top 400%)
23M23.00 mi1.25 mi18386-446697-506697-5019036(Top 67%)7530(Top 62%)7530(Top 438%)
24M24.00 mi1.00 mi18290+966677+206677+2016793(Top 59%)6383(Top 52%)6383(Top 372%)
40K24.85 mi0.85 mi18351-616742-656742-6519072(Top 67%)7665(Top 63%)7665(Top 446%)
25.2M25.20 mi0.35 mi18285+666718+246718+2415039(Top 53%)5586(Top 46%)5586(Top 325%)
Finish26.22 mi1.02 mi18317-326756-386756-3818612(Top 66%)7384(Top 60%)7384(Top 430%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 61%
×21story building
+97ft-345ft

Overall

17349

Females

5928

F40-44

5928

5K→10K

3.1 - 6.2 mi

Top 62%
×5story building
+79ft-138ft

Overall

17508

Females

6003

F40-44

6003

10K→15K

6.2 - 9.3 mi

Top 61%
×3story building
+67ft-78ft

Overall

17349

Females

5928

F40-44

5928

15K→20K

9.3 - 12.4 mi

Top 60%
×5story building
+106ft-86ft

Overall

16945

Females

5747

F40-44

5747

20K→Half

12.4 - 13.1 mi

Top 71%
×2story building
+19ft-37ft

Overall

20070

Females

7510

F40-44

7510

Half→25K

13.1 - 15.5 mi

Top 62%
×4story building
+66ft-88ft

Overall

17549

Females

6167

F40-44

6167

25K→30K

15.5 - 18.6 mi

Top 63%
×9story building
+181ft-148ft

Overall

18016

Females

6579

F40-44

6579

30K→20M

18.6 - 20.0 mi

Top 73%
×5story building
+64ft-50ft

Overall

20718

Females

8199

F40-44

8199

20M→21M

20.0 - 21.0 mi

Top 81%
×8story building
+106ft-24ft

Overall

23097

Females

9537

F40-44

9537

21M→35K

21.0 - 21.8 mi

Top 63%
×7story building
+17ft-86ft

Overall

17941

Females

6867

F40-44

6867

35K→23M

21.8 - 23.0 mi

Top 67%
×5story building
+23ft-63ft

Overall

19036

Females

7530

F40-44

7530

23M→24M

23.0 - 24.0 mi

Top 59%
×6story building
+12ft-82ft

Overall

16793

Females

6383

F40-44

6383

24M→40K

24.0 - 24.9 mi

Top 67%
×1story
+6ft-20ft

Overall

19072

Females

7665

F40-44

7665

40K→25.2M

24.9 - 25.2 mi

Top 53%
×1story
+13ft-16ft

Overall

15039

Females

5586

F40-44

5586

25.2M→Finish

25.2 - 26.2 mi

Top 66%
×2story building
+22ft-21ft

Overall

18612

Females

7384

F40-44

7384

Passing Analysis

Category:
Athletes Passed
1715
Passed By
2463
Net Change
-748
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#17569
5K → 10K303270+33#17569#17536
10K → 15K254168+86#17536#17450
15K → 20K26598+167#17450#17283
20K → Half6149-143#17283#17426
Half → 25K183157+26#17426#17400
25K → 30K198271-73#17400#17473
30K → 20M51394-343#17473#17816
20M → 21M12553-541#17816#18357
21M → 35K6348+15#18357#18342
35K → 23M92136-44#18342#18386
23M → 24M12428+96#18386#18290
24M → 40K48109-61#18290#18351
40K → 25.2M704+66#18351#18285
25.2M → Finish4678-32#18285#18317
TOTALS17152463-748
📊

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