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BOSTON MARATHON 2025

Cheryl Lacey

Bib: 12698•F

FL

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Masters (Masters Women)
#0 / 6759
Top 41%
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
7:46/mi
24:07
↑ 97↓ 3451.5%
10K· 6.21 mi
8:14/mi
49:43
↑ 79↓ 1380.4%
15K· 9.32 mi
8:00/mi
1:14:33
↑ 67↓ 78
20K· 12.43 mi
8:56/mi
1:42:18
↑ 106↓ 860.1%
Half· 13.11 mi
8:26/mi
1:48:03
↑ 19↓ 370.5%
25K· 15.53 mi
8:49/mi
2:09:25
↑ 66↓ 880.2%
30K· 18.64 mi
9:11/mi
2:37:56
↑ 181↓ 1480.2%
20M
8:59/mi
2:50:09
↑ 64↓ 500.2%
21M
10:33/mi
3:00:42
↑ 106↓ 241.6%
35K· 21.75 mi
9:00/mi
3:07:26
↑ 17↓ 861.7%
23M
8:52/mi
3:18:32
↑ 23↓ 630.6%
24M
8:40/mi
3:27:12
↓ 821.3%
40K· 24.85 mi
8:43/mi
3:34:39
↓ 200.3%
25.2M
9:20/mi
3:37:52
↑ 13↓ 160.2%
Finish· 26.22 mi
8:25/mi
3:46:27
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:48:03
Pace8:15 /mi
2nd Half
Distance13.11 mi
Time1:58:24
Pace9:02 /mi
📊Positive Split: 9.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:52:0324:077:4624:07
7:46
-
10K
6.21 mi11:17:3949:438:0025:36
8:14
+0:28
15K
9.32 mi11:42:291:14:338:0024:50
8:00
-0:14
20K
12.43 mi12:10:141:42:188:1427:45
8:56
+0:56
Half
13.11 mi12:15:591:48:038:155:45
8:26
-0:30
25K
15.53 mi12:37:212:09:258:2021:22
8:49
+0:23
30K
18.64 mi13:05:522:37:568:2828:31
9:11
+0:22
20M
20.00 mi13:18:052:50:098:3012:13
8:59
-0:12
21M
21.00 mi13:28:383:00:428:3610:33
10:33
+1:34
35K
21.75 mi13:35:223:07:268:376:44
9:00
-1:33
23M
23.00 mi13:46:283:18:328:3811:06
8:52
-0:08
24M
24.00 mi13:55:083:27:128:388:40
8:40
-0:12
40K
24.85 mi14:02:353:34:398:387:27
8:43
+0:03
25.2M
25.20 mi14:05:483:37:528:393:13
9:20
+0:37
Finish
26.22 mi14:14:233:46:278:398:35
8:25
-0:55

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

7:46 /mi

Average Pace

8:39 /mi

Slowest Pace

10:33 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:28:53

39% of race

Time at Steady Pace

1:35:17

42% of race

Time at Slower Pace

42:17

19% of race

Average Pace: 8:38 /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 mi10:52:0324:077:4624:07
7:46
#14499
10K
6.21 mi11:17:3949:438:0025:36
8:14
#16535
15K
9.32 mi11:42:291:14:338:0024:50
8:00
#16320
20K
12.43 mi12:10:141:42:188:1427:45
8:56
#17561
Half
13.11 mi12:15:591:48:038:155:45
8:26
#17624
25K
15.53 mi12:37:212:09:258:2021:22
8:49
#17787
30K
18.64 mi13:05:522:37:568:2828:31
9:11
#17924
20M
20.00 mi13:18:052:50:098:3012:13
8:59
#17832
21M
21.00 mi13:28:383:00:428:3610:33
10:33
#18044
35K
21.75 mi13:35:223:07:268:376:44
9:00
#18046
23M
23.00 mi13:46:283:18:328:3811:06
8:52
#17872
24M
24.00 mi13:55:083:27:128:388:40
8:40
#17722
40K
24.85 mi14:02:353:34:398:387:27
8:43
#17620
25.2M
25.20 mi14:05:483:37:528:393:13
9:20
#17546
Finish
26.22 mi14:14:233:46:278:398:35
8:25
#17476
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi144994217421716019(Top 56%)5158(Top 42%)5158(Top 300%)
10K6.21 mi3.10 mi16535-20365459-12425459-124218177(Top 64%)6406(Top 52%)6406(Top 373%)
15K9.32 mi3.11 mi16320+2155326+1335326+13316019(Top 56%)5158(Top 42%)5158(Top 300%)
20K12.43 mi3.11 mi17561-12416073-7476073-74720629(Top 73%)7849(Top 64%)7849(Top 457%)
Half13.11 mi0.68 mi17624-636111-386111-3818763(Top 66%)6757(Top 55%)6757(Top 393%)
25K15.53 mi2.42 mi17787-1636228-1176228-11718996(Top 67%)6973(Top 57%)6973(Top 406%)
30K18.64 mi3.11 mi17924-1376356-1286356-12818548(Top 65%)6855(Top 56%)6855(Top 399%)
20M20.00 mi1.36 mi17832+926331+256331+2516759(Top 59%)6012(Top 49%)6012(Top 350%)
21M21.00 mi1.00 mi18044-2126459-1286459-12820178(Top 71%)8005(Top 65%)8005(Top 466%)
35K21.75 mi0.75 mi18046-26473-146473-1418245(Top 64%)7037(Top 58%)7037(Top 410%)
23M23.00 mi1.25 mi17872+1746426+476426+4715514(Top 55%)5616(Top 46%)5616(Top 327%)
24M24.00 mi1.00 mi17722+1506377+496377+4915569(Top 55%)5682(Top 46%)5682(Top 331%)
40K24.85 mi0.85 mi17620+1026344+336344+3314736(Top 52%)5390(Top 44%)5390(Top 314%)
25.2M25.20 mi0.35 mi17546+746316+286316+2813716(Top 48%)4896(Top 40%)4896(Top 285%)
Finish26.22 mi1.02 mi17476+706298+186298+1815768(Top 56%)5900(Top 48%)5900(Top 343%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 56%
×21story building
+97ft-345ft

Overall

16019

Females

5158

F40-44

5158

5K→10K

3.1 - 6.2 mi

Top 64%
×5story building
+79ft-138ft

Overall

18177

Females

6406

F40-44

6406

10K→15K

6.2 - 9.3 mi

Top 56%
×3story building
+67ft-78ft

Overall

16019

Females

5158

F40-44

5158

15K→20K

9.3 - 12.4 mi

Top 73%
×5story building
+106ft-86ft

Overall

20629

Females

7849

F40-44

7849

20K→Half

12.4 - 13.1 mi

Top 66%
×2story building
+19ft-37ft

Overall

18763

Females

6757

F40-44

6757

Half→25K

13.1 - 15.5 mi

Top 67%
×4story building
+66ft-88ft

Overall

18996

Females

6973

F40-44

6973

25K→30K

15.5 - 18.6 mi

Top 65%
×9story building
+181ft-148ft

Overall

18548

Females

6855

F40-44

6855

30K→20M

18.6 - 20.0 mi

Top 59%
×5story building
+64ft-50ft

Overall

16759

Females

6012

F40-44

6012

20M→21M

20.0 - 21.0 mi

Top 71%
×8story building
+106ft-24ft

Overall

20178

Females

8005

F40-44

8005

21M→35K

21.0 - 21.8 mi

Top 64%
×7story building
+17ft-86ft

Overall

18245

Females

7037

F40-44

7037

35K→23M

21.8 - 23.0 mi

Top 55%
×5story building
+23ft-63ft

Overall

15514

Females

5616

F40-44

5616

23M→24M

23.0 - 24.0 mi

Top 55%
×6story building
+12ft-82ft

Overall

15569

Females

5682

F40-44

5682

24M→40K

24.0 - 24.9 mi

Top 52%
×1story
+6ft-20ft

Overall

14736

Females

5390

F40-44

5390

40K→25.2M

24.9 - 25.2 mi

Top 48%
×1story
+13ft-16ft

Overall

13716

Females

4896

F40-44

4896

25.2M→Finish

25.2 - 26.2 mi

Top 56%
×2story building
+22ft-21ft

Overall

15768

Females

5900

F40-44

5900

Passing Analysis

Category:
Athletes Passed
1597
Passed By
4574
Net Change
-2977
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#14499
5K → 10K172053-2036#14499#16535
10K → 15K318103+215#16535#16320
15K → 20K261267-1241#16320#17561
20K → Half1578-63#17561#17624
Half → 25K120283-163#17624#17787
25K → 30K189326-137#17787#17924
30K → 20M15664+92#17924#17832
20M → 21M44256-212#17832#18044
21M → 35K5355-2#18044#18046
35K → 23M19824+174#18046#17872
23M → 24M16818+150#17872#17722
24M → 40K12018+102#17722#17620
40K → 25.2M751+74#17620#17546
25.2M → Finish9828+70#17546#17476
TOTALS15974574-2977
📊

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