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BOSTON MARATHON 2025

Rebecca Durcan

Bib: 23660•F

ON

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Masters (Masters Women)
#0 / 6759
Top 42%
Division (F50-54)
#0 / 1303
Top 37%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
26:34
Rank: #20202
Start → 5K
8:33/mi
26:34 split
10K· 6.21 mi
52:50
Rank: #19857 (+345)
5K → 10K
8:27/mi
26:16 split
15K· 9.32 mi
1:19:04
Rank: #19558 (+299)
10K → 15K
8:27/mi
26:14 split
20K· 12.43 mi
1:45:10
Rank: #19032 (+526)
15K → 20K
8:24/mi
26:06 split
Half· 13.11 mi
1:50:41
Rank: #18911 (+121)
20K → Half
8:05/mi
5:31 split
25K· 15.53 mi
2:11:20
Rank: #18621 (+290)
Half → 25K
8:31/mi
20:39 split
30K· 18.64 mi
2:38:40
Rank: #18203 (+418)
25K → 30K
8:48/mi
27:20 split
20M
2:50:37
Rank: #17971 (+232)
30K → 20M
8:48/mi
11:57 split
21M
2:59:53
Rank: #17793 (+178)
20M → 21M
9:16/mi
9:16 split
35K· 21.75 mi
3:06:07
Rank: #17653 (+140)
21M → 35K
8:20/mi
6:14 split
23M
3:17:05
Rank: #17465 (+188)
35K → 23M
8:46/mi
10:58 split
24M
3:25:46
Rank: #17380 (+85)
23M → 24M
8:41/mi
8:41 split
40K· 24.85 mi
3:33:41
Rank: #17395 (-15)
24M → 40K
9:16/mi
7:55 split
25.2M
3:37:24
Rank: #17457 (-62)
40K → 25.2M
10:47/mi
3:43 split
Finish· 26.22 mi
3:47:19
Rank: #17688 (-231)
25.2M → Finish
9:44/mi
9:55 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:50:41
Pace8:27 /mi
2nd Half
Distance13.11 mi
Time1:56:38
Pace8:54 /mi
📊Positive Split: 5.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:25:1926:348:3326:34
8:33
-
10K
6.21 mi11:51:3552:508:3026:16
8:27
-0:06
15K
9.32 mi12:17:491:19:048:2926:14
8:27
0:00
20K
12.43 mi12:43:551:45:108:2826:06
8:24
-0:03
Half
13.11 mi12:49:261:50:418:275:31
8:05
-0:19
25K
15.53 mi13:10:052:11:208:2720:39
8:31
+0:26
30K
18.64 mi13:37:252:38:408:3127:20
8:48
+0:17
20M
20.00 mi13:49:222:50:378:3211:57
8:48
0:00
21M
21.00 mi13:58:382:59:538:349:16
9:16
+0:28
35K
21.75 mi14:04:523:06:078:336:14
8:20
-0:56
23M
23.00 mi14:15:503:17:058:3410:58
8:46
+0:26
24M
24.00 mi14:24:313:25:468:348:41
8:41
-0:05
40K
24.85 mi14:32:263:33:418:367:55
9:16
+0:35
25.2M
25.20 mi14:36:093:37:248:383:43
10:47
+1:31
Finish
26.22 mi14:46:043:47:198:419:55
9:44
-1:03

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

8:05 /mi

Average Pace

8:41 /mi

Slowest Pace

10:47 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

11:45

5% of race

Time at Steady Pace

3:04:45

81% of race

Time at Slower Pace

30:49

14% of race

Average Pace: 8:40 /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 mi11:25:1926:348:3326:34
8:33
#20202
10K
6.21 mi11:51:3552:508:3026:16
8:27
#19857
15K
9.32 mi12:17:491:19:048:2926:14
8:27
#19558
20K
12.43 mi12:43:551:45:108:2826:06
8:24
#19032
Half
13.11 mi12:49:261:50:418:275:31
8:05
#18911
25K
15.53 mi13:10:052:11:208:2720:39
8:31
#18621
30K
18.64 mi13:37:252:38:408:3127:20
8:48
#18203
20M
20.00 mi13:49:222:50:378:3211:57
8:48
#17971
21M
21.00 mi13:58:382:59:538:349:16
9:16
#17793
35K
21.75 mi14:04:523:06:078:336:14
8:20
#17653
23M
23.00 mi14:15:503:17:058:3410:58
8:46
#17465
24M
24.00 mi14:24:313:25:468:348:41
8:41
#17380
40K
24.85 mi14:32:263:33:418:367:55
9:16
#17395
25.2M
25.20 mi14:36:093:37:248:383:43
10:47
#17457
Finish
26.22 mi14:46:043:47:198:419:55
9:44
#17688
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi202027616761619004(Top 67%)6902(Top 56%)6902(Top 530%)
10K6.21 mi3.10 mi19857+3457389+2277389+22719544(Top 69%)7197(Top 59%)7197(Top 552%)
15K9.32 mi3.11 mi19558+2997208+1817208+18119004(Top 67%)6902(Top 56%)6902(Top 530%)
20K12.43 mi3.11 mi19032+5266922+2866922+28617565(Top 62%)6087(Top 50%)6087(Top 467%)
Half13.11 mi0.68 mi18911+1216852+706852+7016593(Top 58%)5539(Top 45%)5539(Top 425%)
25K15.53 mi2.42 mi18621+2906703+1496703+14917317(Top 61%)6039(Top 49%)6039(Top 463%)
30K18.64 mi3.11 mi18203+4186508+1956508+19516580(Top 58%)5796(Top 47%)5796(Top 445%)
20M20.00 mi1.36 mi17971+2326405+1036405+10315663(Top 55%)5407(Top 44%)5407(Top 415%)
21M21.00 mi1.00 mi17793+1786319+866319+8615007(Top 53%)5190(Top 42%)5190(Top 398%)
35K21.75 mi0.75 mi17653+1406267+526267+5214548(Top 51%)5002(Top 41%)5002(Top 384%)
23M23.00 mi1.25 mi17465+1886205+626205+6214915(Top 53%)5295(Top 43%)5295(Top 406%)
24M24.00 mi1.00 mi17380+856181+246181+2415670(Top 55%)5736(Top 47%)5736(Top 440%)
40K24.85 mi0.85 mi17395-156213-326213-3217667(Top 62%)6954(Top 57%)6954(Top 534%)
25.2M25.20 mi0.35 mi17457-626261-486261-4819977(Top 70%)8138(Top 67%)8138(Top 625%)
Finish26.22 mi1.02 mi17688-2316405-1446405-14422031(Top 78%)9168(Top 75%)9168(Top 704%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 67%
×21story building
+97ft-345ft

Overall

19004

Females

6902

F50-54

6902

5K→10K

3.1 - 6.2 mi

Top 69%
×5story building
+79ft-138ft

Overall

19544

Females

7197

F50-54

7197

10K→15K

6.2 - 9.3 mi

Top 67%
×3story building
+67ft-78ft

Overall

19004

Females

6902

F50-54

6902

15K→20K

9.3 - 12.4 mi

Top 62%
×5story building
+106ft-86ft

Overall

17565

Females

6087

F50-54

6087

20K→Half

12.4 - 13.1 mi

Top 58%
×2story building
+19ft-37ft

Overall

16593

Females

5539

F50-54

5539

Half→25K

13.1 - 15.5 mi

Top 61%
×4story building
+66ft-88ft

Overall

17317

Females

6039

F50-54

6039

25K→30K

15.5 - 18.6 mi

Top 58%
×9story building
+181ft-148ft

Overall

16580

Females

5796

F50-54

5796

30K→20M

18.6 - 20.0 mi

Top 55%
×5story building
+64ft-50ft

Overall

15663

Females

5407

F50-54

5407

20M→21M

20.0 - 21.0 mi

Top 53%
×8story building
+106ft-24ft

Overall

15007

Females

5190

F50-54

5190

21M→35K

21.0 - 21.8 mi

Top 51%
×7story building
+17ft-86ft

Overall

14548

Females

5002

F50-54

5002

35K→23M

21.8 - 23.0 mi

Top 53%
×5story building
+23ft-63ft

Overall

14915

Females

5295

F50-54

5295

23M→24M

23.0 - 24.0 mi

Top 55%
×6story building
+12ft-82ft

Overall

15670

Females

5736

F50-54

5736

24M→40K

24.0 - 24.9 mi

Top 62%
×1story
+6ft-20ft

Overall

17667

Females

6954

F50-54

6954

40K→25.2M

24.9 - 25.2 mi

Top 70%
×1story
+13ft-16ft

Overall

19977

Females

8138

F50-54

8138

25.2M→Finish

25.2 - 26.2 mi

Top 78%
×2story building
+22ft-21ft

Overall

22031

Females

9168

F50-54

9168

Passing Analysis

Category:
Athletes Passed
3344
Passed By
830
Net Change
+2514
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#20202
5K → 10K494149+345#20202#19857
10K → 15K36667+299#19857#19558
15K → 20K54418+526#19558#19032
20K → Half1232+121#19032#18911
Half → 25K31222+290#18911#18621
25K → 30K47456+418#18621#18203
30K → 20M25220+232#18203#17971
20M → 21M20426+178#17971#17793
21M → 35K15010+140#17793#17653
35K → 23M21224+188#17653#17465
23M → 24M12540+85#17465#17380
24M → 40K6075-15#17380#17395
40K → 25.2M1375-62#17395#17457
25.2M → Finish15246-231#17457#17688
TOTALS3344830+2514
📊

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