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BOSTON MARATHON 2025

Jennifer Surmick

Bib: 21459•F

PA

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Masters (Masters Women)
#0 / 6759
Division (F45-49)
#0 / 1813
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
25:16
↑ 97↓ 3451.5%
10K· 6.21 mi
8:22/mi
51:15
↑ 79↓ 1380.4%
15K· 9.32 mi
8:37/mi
1:18:00
↑ 67↓ 78
20K· 12.43 mi
8:55/mi
1:45:42
↑ 106↓ 860.1%
Half· 13.11 mi
8:54/mi
1:51:46
↑ 19↓ 370.5%
25K· 15.53 mi
9:13/mi
2:14:07
↑ 66↓ 880.2%
30K· 18.64 mi
9:43/mi
2:44:18
↑ 181↓ 1480.2%
20M
9:43/mi
2:57:30
↑ 64↓ 500.2%
21M
10:07/mi
3:07:37
↑ 106↓ 241.6%
35K· 21.75 mi
8:52/mi
3:14:15
↑ 17↓ 861.7%
23M
9:20/mi
3:25:56
↑ 23↓ 630.6%
24M
9:00/mi
3:34:56
↓ 821.3%
40K· 24.85 mi
9:05/mi
3:42:42
↓ 200.3%
25.2M
9:37/mi
3:46:01
↑ 13↓ 160.2%
Finish· 26.22 mi
8:27/mi
3:54:38
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:51:46
Pace8:32 /mi
2nd Half
Distance13.11 mi
Time2:02:52
Pace9:22 /mi
📊Positive Split: 9.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:20:3825:168:0825:16
8:08
-
10K
6.21 mi11:46:3751:158:1525:59
8:22
+0:14
15K
9.32 mi12:13:221:18:008:2226:45
8:37
+0:15
20K
12.43 mi12:41:041:45:428:3027:42
8:55
+0:18
Half
13.11 mi12:47:081:51:468:326:04
8:54
-0:01
25K
15.53 mi13:09:292:14:078:3822:21
9:13
+0:19
30K
18.64 mi13:39:402:44:188:4930:11
9:43
+0:30
20M
20.00 mi13:52:522:57:308:5213:12
9:43
0:00
21M
21.00 mi14:02:593:07:378:5610:07
10:07
+0:24
35K
21.75 mi14:09:373:14:158:566:38
8:52
-1:15
23M
23.00 mi14:21:183:25:568:5711:41
9:20
+0:28
24M
24.00 mi14:30:183:34:568:579:00
9:00
-0:20
40K
24.85 mi14:38:043:42:428:587:46
9:05
+0:05
25.2M
25.20 mi14:41:233:46:018:583:19
9:37
+0:32
Finish
26.22 mi14:50:003:54:388:578:37
8:27
-1:10

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

8:57 /mi

Slowest Pace

10:07 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:26:37

37% of race

Time at Steady Pace

1:19:31

34% of race

Time at Slower Pace

1:08:30

29% of race

Average Pace: 8:57 /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 mi11:20:3825:168:0825:16
8:08
#17612
10K
6.21 mi11:46:3751:158:1525:59
8:22
#18293
15K
9.32 mi12:13:221:18:008:2226:45
8:37
#18847
20K
12.43 mi12:41:041:45:428:3027:42
8:55
#19305
Half
13.11 mi12:47:081:51:468:326:04
8:54
#19435
25K
15.53 mi13:09:292:14:078:3822:21
9:13
#19704
30K
18.64 mi13:39:402:44:188:4930:11
9:43
#19950
20M
20.00 mi13:52:522:57:308:5213:12
9:43
#19955
21M
21.00 mi14:02:593:07:378:5610:07
10:07
#19875
35K
21.75 mi14:09:373:14:158:566:38
8:52
#19783
23M
23.00 mi14:21:183:25:568:5711:41
9:20
#19672
24M
24.00 mi14:30:183:34:568:579:00
9:00
#19579
40K
24.85 mi14:38:043:42:428:587:46
9:05
#19470
25.2M
25.20 mi14:41:233:46:018:583:19
9:37
#19399
Finish
26.22 mi14:50:003:54:388:578:37
8:27
#19270
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi176126105610519989(Top 70%)7434(Top 61%)7434(Top 410%)
10K6.21 mi3.10 mi18293-6816503-3986503-39818970(Top 67%)6868(Top 56%)6868(Top 379%)
15K9.32 mi3.11 mi18847-5546823-3206823-32019989(Top 70%)7434(Top 61%)7434(Top 410%)
20K12.43 mi3.11 mi19305-4587084-2617084-26120559(Top 72%)7806(Top 64%)7806(Top 431%)
Half13.11 mi0.68 mi19435-1307154-707154-7021360(Top 75%)8221(Top 67%)8221(Top 453%)
25K15.53 mi2.42 mi19704-2697318-1647318-16420838(Top 73%)7995(Top 65%)7995(Top 441%)
30K18.64 mi3.11 mi19950-2467498-1807498-18020739(Top 73%)8075(Top 66%)8075(Top 445%)
20M20.00 mi1.36 mi19955-57521-237521-2319994(Top 70%)7784(Top 64%)7784(Top 429%)
21M21.00 mi1.00 mi19875+807498+237498+2318744(Top 66%)7202(Top 59%)7202(Top 397%)
35K21.75 mi0.75 mi19783+927466+327466+3217641(Top 62%)6716(Top 55%)6716(Top 370%)
23M23.00 mi1.25 mi19672+1117437+297437+2917949(Top 63%)6964(Top 57%)6964(Top 384%)
24M24.00 mi1.00 mi19579+937410+277410+2717401(Top 61%)6714(Top 55%)6714(Top 370%)
40K24.85 mi0.85 mi19470+1097364+467364+4616809(Top 59%)6489(Top 53%)6489(Top 358%)
25.2M25.20 mi0.35 mi19399+717330+347330+3415294(Top 54%)5735(Top 47%)5735(Top 316%)
Finish26.22 mi1.02 mi19270+1297282+487282+4815979(Top 56%)6017(Top 49%)6017(Top 332%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 70%
×21story building
+97ft-345ft

Overall

19989

Females

7434

F45-49

7434

5K→10K

3.1 - 6.2 mi

Top 67%
×5story building
+79ft-138ft

Overall

18970

Females

6868

F45-49

6868

10K→15K

6.2 - 9.3 mi

Top 70%
×3story building
+67ft-78ft

Overall

19989

Females

7434

F45-49

7434

15K→20K

9.3 - 12.4 mi

Top 72%
×5story building
+106ft-86ft

Overall

20559

Females

7806

F45-49

7806

20K→Half

12.4 - 13.1 mi

Top 75%
×2story building
+19ft-37ft

Overall

21360

Females

8221

F45-49

8221

Half→25K

13.1 - 15.5 mi

Top 73%
×4story building
+66ft-88ft

Overall

20838

Females

7995

F45-49

7995

25K→30K

15.5 - 18.6 mi

Top 73%
×9story building
+181ft-148ft

Overall

20739

Females

8075

F45-49

8075

30K→20M

18.6 - 20.0 mi

Top 70%
×5story building
+64ft-50ft

Overall

19994

Females

7784

F45-49

7784

20M→21M

20.0 - 21.0 mi

Top 66%
×8story building
+106ft-24ft

Overall

18744

Females

7202

F45-49

7202

21M→35K

21.0 - 21.8 mi

Top 62%
×7story building
+17ft-86ft

Overall

17641

Females

6716

F45-49

6716

35K→23M

21.8 - 23.0 mi

Top 63%
×5story building
+23ft-63ft

Overall

17949

Females

6964

F45-49

6964

23M→24M

23.0 - 24.0 mi

Top 61%
×6story building
+12ft-82ft

Overall

17401

Females

6714

F45-49

6714

24M→40K

24.0 - 24.9 mi

Top 59%
×1story
+6ft-20ft

Overall

16809

Females

6489

F45-49

6489

40K→25.2M

24.9 - 25.2 mi

Top 54%
×1story
+13ft-16ft

Overall

15294

Females

5735

F45-49

5735

25.2M→Finish

25.2 - 26.2 mi

Top 56%
×2story building
+22ft-21ft

Overall

15979

Females

6017

F45-49

6017

Passing Analysis

Category:
Athletes Passed
1414
Passed By
3072
Net Change
-1658
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#17612
5K → 10K86767-681#17612#18293
10K → 15K56610-554#18293#18847
15K → 20K89547-458#18847#19305
20K → Half8138-130#19305#19435
Half → 25K85354-269#19435#19704
25K → 30K152398-246#19704#19950
30K → 20M109114-5#19950#19955
20M → 21M12848+80#19955#19875
21M → 35K1019+92#19875#19783
35K → 23M14837+111#19783#19672
23M → 24M11724+93#19672#19579
24M → 40K11910+109#19579#19470
40K → 25.2M754+71#19470#19399
25.2M → Finish14112+129#19399#19270
TOTALS14143072-1658
📊

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