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BOSTON MARATHON 2025

Sarah Beresford

Bib: 13722•F

CA

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 37%
Gender (Female)
#0 / 12228
Top 20%
Division (F18-39)
#0 / 5469
Top 35%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
23:51
Rank: #13760
Start → 5K
23:51 | 7:41/mi
10K· 6.21 mi
47:49
Rank: #13887 (-127)
5K → 10K
23:58 | 7:43/mi
15K· 9.32 mi
1:11:55
Rank: #13886 (+1)
10K → 15K
24:06 | 7:45/mi
20K· 12.43 mi
1:35:52
Rank: #13489 (+397)
15K → 20K
23:57 | 7:43/mi
Half· 13.11 mi
1:41:09
Rank: #13506 (-17)
20K → Half
5:17 | 7:45/mi
25K· 15.53 mi
1:59:55
Rank: #13188 (+318)
Half → 25K
18:46 | 7:44/mi
30K· 18.64 mi
2:23:54
Rank: #12427 (+761)
25K → 30K
23:59 | 7:43/mi
20M
2:34:29
Rank: #12107 (+320)
30K → 20M
10:35 | 7:47/mi
21M
2:42:23
Rank: #11752 (+355)
20M → 21M
7:54 | 7:54/mi
35K· 21.75 mi
2:47:49
Rank: #11548 (+204)
21M → 35K
5:26 | 7:16/mi
23M
2:57:09
Rank: #11150 (+398)
35K → 23M
9:20 | 7:27/mi
24M
3:04:37
Rank: #10951 (+199)
23M → 24M
7:28 | 7:28/mi
40K· 24.85 mi
3:10:57
Rank: #10743 (+208)
24M → 40K
6:20 | 7:24/mi
25.2M
3:13:43
Rank: #10632 (+111)
40K → 25.2M
2:46 | 8:01/mi
Finish· 26.22 mi
3:21:02
Rank: #10446 (+186)
25.2M → Finish
7:19 | 7:11/mi

The Course

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Half Splits

1st Half· via Half
Distance13.11 mi
Time1:41:09
Pace7:43 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:39:53
Pace7:37 /mi
📊Negative Split: 1.3% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:52:5923:517:4123:51
7:41
-
10K
6.21 mi11:16:5747:497:4223:58
7:43
+0:02
15K
9.32 mi11:41:031:11:557:4324:06
7:45
+0:02
20K
12.43 mi12:05:001:35:527:4323:57
7:43
-0:02
Half
13.11 mi12:10:171:41:097:435:17
7:45
+0:02
25K
15.53 mi12:29:031:59:557:4318:46
7:44
-0:01
30K
18.64 mi12:53:022:23:547:4323:59
7:43
-0:01
20M
20.00 mi13:03:372:34:297:4310:35
7:47
+0:04
21M
21.00 mi13:11:312:42:237:447:54
7:54
+0:07
35K
21.75 mi13:16:572:47:497:435:26
7:16
-0:38
23M
23.00 mi13:26:172:57:097:429:20
7:27
+0:11
24M
24.00 mi13:33:453:04:377:427:28
7:28
+0:01
40K
24.85 mi13:40:053:10:577:416:20
7:24
-0:04
25.2M
25.20 mi13:42:513:13:437:412:46
8:01
+0:37
Finish
26.22 mi13:50:103:21:027:407:19
7:11
-0:50

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

7:11 /mi

Average Pace

7:40 /mi

Slowest Pace

8:01 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:18:16

99% of race

Time at Steady Pace

2:46

1% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:40 /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 mi10:52:5923:517:4123:51
7:41
#13760
10K
6.21 mi11:16:5747:497:4223:58
7:43
#13887
15K
9.32 mi11:41:031:11:557:4324:06
7:45
#13886
20K
12.43 mi12:05:001:35:527:4323:57
7:43
#13489
Half
13.11 mi12:10:171:41:097:435:17
7:45
#13506
25K
15.53 mi12:29:031:59:557:4318:46
7:44
#13188
30K
18.64 mi12:53:022:23:547:4323:59
7:43
#12427
20M
20.00 mi13:03:372:34:297:4310:35
7:47
#12107
21M
21.00 mi13:11:312:42:237:447:54
7:54
#11752
35K
21.75 mi13:16:572:47:497:435:26
7:16
#11548
23M
23.00 mi13:26:172:57:097:429:20
7:27
#11150
24M
24.00 mi13:33:453:04:377:427:28
7:28
#10951
40K
24.85 mi13:40:053:10:577:416:20
7:24
#10743
25.2M
25.20 mi13:42:513:13:437:412:46
8:01
#10632
Finish
26.22 mi13:50:103:21:027:407:19
7:11
#10446
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi137603745374513999(Top 49%)4011(Top 33%)4011(Top 73%)
10K6.21 mi3.10 mi13887-1273873-1283873-12814029(Top 49%)3969(Top 32%)3969(Top 73%)
15K9.32 mi3.11 mi13886+13899-263899-2613999(Top 49%)4011(Top 33%)4011(Top 73%)
20K12.43 mi3.11 mi13489+3973721+1783721+17812493(Top 44%)3263(Top 27%)3263(Top 60%)
Half13.11 mi0.68 mi13506-173734-133734-1313776(Top 49%)3915(Top 32%)3915(Top 72%)
25K15.53 mi2.42 mi13188+3183584+1503584+15011868(Top 42%)3043(Top 25%)3043(Top 56%)
30K18.64 mi3.11 mi12427+7613228+3563228+3569340(Top 33%)1981(Top 16%)1981(Top 36%)
20M20.00 mi1.36 mi12107+3203087+1413087+1418978(Top 32%)1985(Top 16%)1985(Top 36%)
21M21.00 mi1.00 mi11752+3552935+1522935+1526828(Top 24%)1243(Top 10%)1243(Top 23%)
35K21.75 mi0.75 mi11548+2042861+742861+747052(Top 25%)1325(Top 11%)1325(Top 24%)
23M23.00 mi1.25 mi11150+3982691+1702691+1706401(Top 23%)1169(Top 10%)1169(Top 21%)
24M24.00 mi1.00 mi10951+1992632+592632+597511(Top 26%)1679(Top 14%)1679(Top 31%)
40K24.85 mi0.85 mi10743+2082546+862546+866310(Top 22%)1270(Top 10%)1270(Top 23%)
25.2M25.20 mi0.35 mi10632+1112502+442502+446179(Top 22%)1337(Top 11%)1337(Top 24%)
Finish26.22 mi1.02 mi10446+1862443+592443+596958(Top 24%)1635(Top 13%)1635(Top 30%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 49%
×21stories
+97ft-345ft

Overall

13999

Females

4011

F18-39

4011

5K→10K

3.1 - 6.2 mi

Top 49%
×5stories
+79ft-138ft

Overall

14029

Females

3969

F18-39

3969

10K→15K

6.2 - 9.3 mi

Top 49%
×3stories
+67ft-78ft

Overall

13999

Females

4011

F18-39

4011

15K→20K

9.3 - 12.4 mi

Top 44%
×5stories
+106ft-86ft

Overall

12493

Females

3263

F18-39

3263

20K→Half

12.4 - 13.1 mi

Top 49%
×2stories
+19ft-37ft

Overall

13776

Females

3915

F18-39

3915

Half→25K

13.1 - 15.5 mi

Top 42%
×4stories
+66ft-88ft

Overall

11868

Females

3043

F18-39

3043

25K→30K

15.5 - 18.6 mi

Top 33%
×9stories
+181ft-148ft

Overall

9340

Females

1981

F18-39

1981

30K→20M

18.6 - 20.0 mi

Top 32%
×5stories
+64ft-50ft

Overall

8978

Females

1985

F18-39

1985

20M→21M

20.0 - 21.0 mi

Top 24%
×8stories
+106ft-24ft

Overall

6828

Females

1243

F18-39

1243

21M→35K

21.0 - 21.8 mi

Top 25%
×7stories
+17ft-86ft

Overall

7052

Females

1325

F18-39

1325

35K→23M

21.8 - 23.0 mi

Top 23%
×5stories
+23ft-63ft

Overall

6401

Females

1169

F18-39

1169

23M→24M

23.0 - 24.0 mi

Top 26%
×6stories
+12ft-82ft

Overall

7511

Females

1679

F18-39

1679

24M→40K

24.0 - 24.9 mi

Top 22%
×1story
+6ft-20ft

Overall

6310

Females

1270

F18-39

1270

40K→25.2M

24.9 - 25.2 mi

Top 22%
×1story
+13ft-16ft

Overall

6179

Females

1337

F18-39

1337

25.2M→Finish

25.2 - 26.2 mi

Top 24%
×2stories
+22ft-21ft

Overall

6958

Females

1635

F18-39

1635

Passing Analysis

Category:
Athletes Passed
4004
Passed By
690
Net Change
+3314
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#13760
5K → 10K230357-127#13760#13887
10K → 15K187186+1#13887#13886
15K → 20K43639+397#13886#13489
20K → Half3148-17#13489#13506
Half → 25K34123+318#13506#13188
25K → 30K7676+761#13188#12427
30K → 20M3233+320#12427#12107
20M → 21M3561+355#12107#11752
21M → 35K2051+204#11752#11548
35K → 23M4002+398#11548#11150
23M → 24M2056+199#11150#10951
24M → 40K2135+208#10951#10743
40K → 25.2M1143+111#10743#10632
25.2M → Finish19610+186#10632#10446
TOTALS4004690+3314
📊

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