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BOSTON MARATHON 2025

Jennifer Burrows

Bib: 16888•F

CA

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Masters (Masters Women)
#0 / 6759
Division (F50-54)
#0 / 1303
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
27:17
Rank: #21418
Start → 5K
27:17 | 8:47/mi
10K· 6.21 mi
54:59
Rank: #21707 (-289)
5K → 10K
27:42 | 8:55/mi
15K· 9.32 mi
1:22:47
Rank: #21729 (-22)
10K → 15K
27:48 | 8:57/mi
20K· 12.43 mi
1:51:12
Rank: #21696 (+33)
15K → 20K
28:25 | 9:09/mi
Half· 13.11 mi
1:57:53
Rank: #21877 (-181)
20K → Half
6:41 | 9:48/mi
25K· 15.53 mi
2:20:25
Rank: #21738 (+139)
Half → 25K
22:32 | 9:18/mi
30K· 18.64 mi
2:50:14
Rank: #21459 (+279)
25K → 30K
29:49 | 9:36/mi
20M
3:03:36
Rank: #21369 (+90)
30K → 20M
13:22 | 9:50/mi
21M
3:14:30
Rank: #21367 (+2)
20M → 21M
10:54 | 10:54/mi
35K· 21.75 mi
3:21:24
Rank: #21298 (+69)
21M → 35K
6:54 | 9:13/mi
23M
3:33:22
Rank: #21128 (+170)
35K → 23M
11:58 | 9:33/mi
24M
3:42:36
Rank: #21022 (+106)
23M → 24M
9:14 | 9:14/mi
40K· 24.85 mi
3:50:31
Rank: #20909 (+113)
24M → 40K
7:55 | 9:16/mi
25.2M
3:53:53
Rank: #20831 (+78)
40K → 25.2M
3:22 | 9:46/mi
Finish· 26.22 mi
4:02:30
Rank: #20708 (+123)
25.2M → Finish
8:37 | 8:27/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:57:53
Pace9:00 /mi
2nd Half
Distance13.11 mi
Time2:04:37
Pace9:30 /mi
📊Positive Split: 5.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:03:1127:178:4727:17
8:47
-
10K
6.21 mi11:30:5354:598:5127:42
8:55
+0:08
15K
9.32 mi11:58:411:22:478:5327:48
8:57
+0:02
20K
12.43 mi12:27:061:51:128:5728:25
9:09
+0:12
Half
13.11 mi12:33:471:57:539:006:41
9:48
+0:39
25K
15.53 mi12:56:192:20:259:0222:32
9:18
-0:30
30K
18.64 mi13:26:082:50:149:0829:49
9:36
+0:18
20M
20.00 mi13:39:303:03:369:1113:22
9:50
+0:14
21M
21.00 mi13:50:243:14:309:1610:54
10:54
+1:04
35K
21.75 mi13:57:183:21:249:166:54
9:13
-1:41
23M
23.00 mi14:09:163:33:229:1711:58
9:33
+0:20
24M
24.00 mi14:18:303:42:369:179:14
9:14
-0:19
40K
24.85 mi14:26:253:50:319:167:55
9:16
+0:02
25.2M
25.20 mi14:29:473:53:539:173:22
9:46
+0:30
Finish
26.22 mi14:38:244:02:309:158:37
8:27
-1:19

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

8:27 /mi

Average Pace

9:15 /mi

Slowest Pace

10:54 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:31:24

38% of race

Time at Steady Pace

1:15:00

31% of race

Time at Slower Pace

1:16:06

31% of race

Average Pace: 9:15 /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 mi11:03:1127:178:4727:17
8:47
#21418
10K
6.21 mi11:30:5354:598:5127:42
8:55
#21707
15K
9.32 mi11:58:411:22:478:5327:48
8:57
#21729
20K
12.43 mi12:27:061:51:128:5728:25
9:09
#21696
Half
13.11 mi12:33:471:57:539:006:41
9:48
#21877
25K
15.53 mi12:56:192:20:259:0222:32
9:18
#21738
30K
18.64 mi13:26:082:50:149:0829:49
9:36
#21459
20M
20.00 mi13:39:303:03:369:1113:22
9:50
#21369
21M
21.00 mi13:50:243:14:309:1610:54
10:54
#21367
35K
21.75 mi13:57:183:21:249:166:54
9:13
#21298
23M
23.00 mi14:09:163:33:229:1711:58
9:33
#21128
24M
24.00 mi14:18:303:42:369:179:14
9:14
#21022
40K
24.85 mi14:26:253:50:319:167:55
9:16
#20909
25.2M
25.20 mi14:29:473:53:539:173:22
9:46
#20831
Finish
26.22 mi14:38:244:02:309:158:37
8:27
#20708
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi214188311831121799(Top 77%)8436(Top 69%)8436(Top 647%)
10K6.21 mi3.10 mi21707-2898444-1338444-13322016(Top 78%)8605(Top 70%)8605(Top 660%)
15K9.32 mi3.11 mi21729-228452-88452-821799(Top 77%)8436(Top 69%)8436(Top 647%)
20K12.43 mi3.11 mi21696+338434+188434+1821663(Top 76%)8407(Top 69%)8407(Top 645%)
Half13.11 mi0.68 mi21877-1818532-988532-9824366(Top 86%)9910(Top 81%)9910(Top 761%)
25K15.53 mi2.42 mi21738+1398466+668466+6621155(Top 74%)8180(Top 67%)8180(Top 628%)
30K18.64 mi3.11 mi21459+2798340+1268340+12620348(Top 72%)7851(Top 64%)7851(Top 603%)
20M20.00 mi1.36 mi21369+908305+358305+3520417(Top 72%)8029(Top 66%)8029(Top 616%)
21M21.00 mi1.00 mi21367+28320-158320-1521135(Top 74%)8515(Top 70%)8515(Top 653%)
35K21.75 mi0.75 mi21298+698288+328288+3219299(Top 68%)7608(Top 62%)7608(Top 584%)
23M23.00 mi1.25 mi21128+1708230+588230+5818949(Top 67%)7490(Top 61%)7490(Top 575%)
24M24.00 mi1.00 mi21022+1068201+298201+2918536(Top 65%)7320(Top 60%)7320(Top 562%)
40K24.85 mi0.85 mi20909+1138148+538148+5317692(Top 62%)6979(Top 57%)6979(Top 536%)
25.2M25.20 mi0.35 mi20831+788120+288120+2816012(Top 56%)6117(Top 50%)6117(Top 469%)
Finish26.22 mi1.02 mi20708+1238059+618059+6115983(Top 56%)6021(Top 49%)6021(Top 462%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 77%
×21stories
+97ft-345ft

Overall

21799

Females

8436

F50-54

8436

5K→10K

3.1 - 6.2 mi

Top 78%
×5stories
+79ft-138ft

Overall

22016

Females

8605

F50-54

8605

10K→15K

6.2 - 9.3 mi

Top 77%
×3stories
+67ft-78ft

Overall

21799

Females

8436

F50-54

8436

15K→20K

9.3 - 12.4 mi

Top 76%
×5stories
+106ft-86ft

Overall

21663

Females

8407

F50-54

8407

20K→Half

12.4 - 13.1 mi

Top 86%
×2stories
+19ft-37ft

Overall

24366

Females

9910

F50-54

9910

Half→25K

13.1 - 15.5 mi

Top 74%
×4stories
+66ft-88ft

Overall

21155

Females

8180

F50-54

8180

25K→30K

15.5 - 18.6 mi

Top 72%
×9stories
+181ft-148ft

Overall

20348

Females

7851

F50-54

7851

30K→20M

18.6 - 20.0 mi

Top 72%
×5stories
+64ft-50ft

Overall

20417

Females

8029

F50-54

8029

20M→21M

20.0 - 21.0 mi

Top 74%
×8stories
+106ft-24ft

Overall

21135

Females

8515

F50-54

8515

21M→35K

21.0 - 21.8 mi

Top 68%
×7stories
+17ft-86ft

Overall

19299

Females

7608

F50-54

7608

35K→23M

21.8 - 23.0 mi

Top 67%
×5stories
+23ft-63ft

Overall

18949

Females

7490

F50-54

7490

23M→24M

23.0 - 24.0 mi

Top 65%
×6stories
+12ft-82ft

Overall

18536

Females

7320

F50-54

7320

24M→40K

24.0 - 24.9 mi

Top 62%
×1story
+6ft-20ft

Overall

17692

Females

6979

F50-54

6979

40K→25.2M

24.9 - 25.2 mi

Top 56%
×1story
+13ft-16ft

Overall

16012

Females

6117

F50-54

6117

25.2M→Finish

25.2 - 26.2 mi

Top 56%
×2stories
+22ft-21ft

Overall

15983

Females

6021

F50-54

6021

Passing Analysis

Category:
Athletes Passed
2067
Passed By
1357
Net Change
+710
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#21418
5K → 10K159448-289#21418#21707
10K → 15K200222-22#21707#21729
15K → 20K206173+33#21729#21696
20K → Half7188-181#21696#21877
Half → 25K20970+139#21877#21738
25K → 30K34667+279#21738#21459
30K → 20M13848+90#21459#21369
20M → 21M8179+2#21369#21367
21M → 35K8213+69#21367#21298
35K → 23M18717+170#21298#21128
23M → 24M12418+106#21128#21022
24M → 40K1229+113#21022#20909
40K → 25.2M802+78#20909#20831
25.2M → Finish1263+123#20831#20708
TOTALS20671357+710
📊

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