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BOSTON MARATHON 2025

Lisa Spencer

Bib: 16921•F

MA

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Masters (Masters Women)
#0 / 6759
Division (F55-59)
#0 / 994
Top 43%
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
8:57/mi
27:48
↑ 97↓ 3451.5%
10K· 6.21 mi
8:59/mi
55:44
↑ 79↓ 1380.4%
15K· 9.32 mi
8:57/mi
1:23:31
↑ 67↓ 78
20K· 12.43 mi
8:49/mi
1:50:55
↑ 106↓ 860.1%
Half· 13.11 mi
8:48/mi
1:56:55
↑ 19↓ 370.5%
25K· 15.53 mi
8:54/mi
2:18:29
↑ 66↓ 880.2%
30K· 18.64 mi
9:03/mi
2:46:37
↑ 181↓ 1480.2%
20M
9:20/mi
2:59:18
↑ 64↓ 500.2%
21M
10:03/mi
3:09:21
↑ 106↓ 241.6%
35K· 21.75 mi
8:41/mi
3:15:51
↑ 17↓ 861.7%
23M
9:23/mi
3:27:36
↑ 23↓ 630.6%
24M
9:02/mi
3:36:38
↓ 821.3%
40K· 24.85 mi
9:41/mi
3:44:55
↓ 200.3%
25.2M
11:13/mi
3:48:47
↑ 13↓ 160.2%
Finish· 26.22 mi
9:55/mi
3:58:53
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:56:55
Pace8:55 /mi
2nd Half
Distance13.11 mi
Time2:01:58
Pace9:18 /mi
📊Positive Split: 4.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:01:2227:488:5727:48
8:57
-
10K
6.21 mi11:29:1855:448:5827:56
8:59
+0:02
15K
9.32 mi11:57:051:23:318:5827:47
8:57
-0:02
20K
12.43 mi12:24:291:50:558:5627:24
8:49
-0:08
Half
13.11 mi12:30:291:56:558:556:00
8:48
-0:01
25K
15.53 mi12:52:032:18:298:5521:34
8:54
+0:06
30K
18.64 mi13:20:112:46:378:5628:08
9:03
+0:09
20M
20.00 mi13:32:522:59:188:5812:41
9:20
+0:17
21M
21.00 mi13:42:553:09:219:0110:03
10:03
+0:43
35K
21.75 mi13:49:253:15:519:006:30
8:41
-1:22
23M
23.00 mi14:01:103:27:369:0211:45
9:23
+0:42
24M
24.00 mi14:10:123:36:389:029:02
9:02
-0:21
40K
24.85 mi14:18:293:44:559:038:17
9:41
+0:39
25.2M
25.20 mi14:22:213:48:479:053:52
11:13
+1:32
Finish
26.22 mi14:32:273:58:539:0710:06
9:55
-1:18

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

8:41 /mi

Average Pace

9:07 /mi

Slowest Pace

11:13 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

6:30

3% of race

Time at Steady Pace

3:08:20

79% of race

Time at Slower Pace

44:03

18% of race

Average Pace: 9:07 /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 mi11:01:2227:488:5727:48
8:57
#22202
10K
6.21 mi11:29:1855:448:5827:56
8:59
#22305
15K
9.32 mi11:57:051:23:318:5827:47
8:57
#22126
20K
12.43 mi12:24:291:50:558:5627:24
8:49
#21579
Half
13.11 mi12:30:291:56:558:556:00
8:48
#21536
25K
15.53 mi12:52:032:18:298:5521:34
8:54
#21174
30K
18.64 mi13:20:112:46:378:5628:08
9:03
#20566
20M
20.00 mi13:32:522:59:188:5812:41
9:20
#20395
21M
21.00 mi13:42:553:09:219:0110:03
10:03
#20277
35K
21.75 mi13:49:253:15:519:006:30
8:41
#20163
23M
23.00 mi14:01:103:27:369:0211:45
9:23
#20043
24M
24.00 mi14:10:123:36:389:029:02
9:02
#19932
40K
24.85 mi14:18:293:44:559:038:17
9:41
#19922
25.2M
25.20 mi14:22:213:48:479:053:52
11:13
#19948
Finish
26.22 mi14:32:273:58:539:0710:06
9:55
#20134
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF55-59Seg. OverallSeg. FemalesSeg. F55-59
5K3.11 mi3.11 mi222028739873921768(Top 77%)8417(Top 69%)8417(Top 847%)
10K6.21 mi3.10 mi22305-1038782-438782-4322356(Top 79%)8786(Top 72%)8786(Top 884%)
15K9.32 mi3.11 mi22126+1798664+1188664+11821768(Top 77%)8417(Top 69%)8417(Top 847%)
20K12.43 mi3.11 mi21579+5478366+2988366+29820044(Top 71%)7503(Top 61%)7503(Top 755%)
Half13.11 mi0.68 mi21536+438338+288338+2820908(Top 74%)7991(Top 65%)7991(Top 804%)
25K15.53 mi2.42 mi21174+3628139+1998139+19919418(Top 68%)7216(Top 59%)7216(Top 726%)
30K18.64 mi3.11 mi20566+6087850+2897850+28917965(Top 63%)6560(Top 54%)6560(Top 660%)
20M20.00 mi1.36 mi20395+1717777+737777+7318469(Top 65%)6991(Top 57%)6991(Top 703%)
21M21.00 mi1.00 mi20277+1187737+407737+4018527(Top 65%)7079(Top 58%)7079(Top 712%)
35K21.75 mi0.75 mi20163+1147685+527685+5216684(Top 59%)6180(Top 51%)6180(Top 622%)
23M23.00 mi1.25 mi20043+1207642+437642+4318195(Top 64%)7085(Top 58%)7085(Top 713%)
24M24.00 mi1.00 mi19932+1117609+337609+3317571(Top 62%)6807(Top 56%)6807(Top 685%)
40K24.85 mi0.85 mi19922+107616-77616-719444(Top 68%)7860(Top 64%)7860(Top 791%)
25.2M25.20 mi0.35 mi19948-267639-237639-2321294(Top 75%)8804(Top 72%)8804(Top 886%)
Finish26.22 mi1.02 mi20134-1867749-1107749-11022655(Top 80%)9490(Top 78%)9490(Top 955%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 77%
×21story building
+97ft-345ft

Overall

21768

Females

8417

F55-59

8417

5K→10K

3.1 - 6.2 mi

Top 79%
×5story building
+79ft-138ft

Overall

22356

Females

8786

F55-59

8786

10K→15K

6.2 - 9.3 mi

Top 77%
×3story building
+67ft-78ft

Overall

21768

Females

8417

F55-59

8417

15K→20K

9.3 - 12.4 mi

Top 71%
×5story building
+106ft-86ft

Overall

20044

Females

7503

F55-59

7503

20K→Half

12.4 - 13.1 mi

Top 74%
×2story building
+19ft-37ft

Overall

20908

Females

7991

F55-59

7991

Half→25K

13.1 - 15.5 mi

Top 68%
×4story building
+66ft-88ft

Overall

19418

Females

7216

F55-59

7216

25K→30K

15.5 - 18.6 mi

Top 63%
×9story building
+181ft-148ft

Overall

17965

Females

6560

F55-59

6560

30K→20M

18.6 - 20.0 mi

Top 65%
×5story building
+64ft-50ft

Overall

18469

Females

6991

F55-59

6991

20M→21M

20.0 - 21.0 mi

Top 65%
×8story building
+106ft-24ft

Overall

18527

Females

7079

F55-59

7079

21M→35K

21.0 - 21.8 mi

Top 59%
×7story building
+17ft-86ft

Overall

16684

Females

6180

F55-59

6180

35K→23M

21.8 - 23.0 mi

Top 64%
×5story building
+23ft-63ft

Overall

18195

Females

7085

F55-59

7085

23M→24M

23.0 - 24.0 mi

Top 62%
×6story building
+12ft-82ft

Overall

17571

Females

6807

F55-59

6807

24M→40K

24.0 - 24.9 mi

Top 68%
×1story
+6ft-20ft

Overall

19444

Females

7860

F55-59

7860

40K→25.2M

24.9 - 25.2 mi

Top 75%
×1story
+13ft-16ft

Overall

21294

Females

8804

F55-59

8804

25.2M→Finish

25.2 - 26.2 mi

Top 80%
×2story building
+22ft-21ft

Overall

22655

Females

9490

F55-59

9490

Passing Analysis

Category:
Athletes Passed
2935
Passed By
867
Net Change
+2068
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#22202
5K → 10K214317-103#22202#22305
10K → 15K279100+179#22305#22126
15K → 20K56114+547#22126#21579
20K → Half5613+43#21579#21536
Half → 25K37614+362#21536#21174
25K → 30K6135+608#21174#20566
30K → 20M19423+171#20566#20395
20M → 21M14830+118#20395#20277
21M → 35K1206+114#20277#20163
35K → 23M14121+120#20163#20043
23M → 24M12716+111#20043#19932
24M → 40K6858+10#19932#19922
40K → 25.2M2147-26#19922#19948
25.2M → Finish17203-186#19948#20134
TOTALS2935867+2068
📊

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