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BOSTON MARATHON 2025

Rachel Scaffardi

Bib: 22140•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

Start
0:00:00
Race begins
5K· 3.11 mi
26:56
Rank: #20869
Start → 5K
26:56 | 8:40/mi
10K· 6.21 mi
54:21
Rank: #21151 (-282)
5K → 10K
27:25 | 8:49/mi
15K· 9.32 mi
1:21:48
Rank: #21132 (+19)
10K → 15K
27:27 | 8:50/mi
20K· 12.43 mi
1:49:21
Rank: #20935 (+197)
15K → 20K
27:33 | 8:52/mi
Half· 13.11 mi
1:55:16
Rank: #20885 (+50)
20K → Half
5:55 | 8:40/mi
25K· 15.53 mi
2:16:41
Rank: #20622 (+263)
Half → 25K
21:25 | 8:50/mi
30K· 18.64 mi
2:44:36
Rank: #20038 (+584)
25K → 30K
27:55 | 8:59/mi
20M
2:56:55
Rank: #19813 (+225)
30K → 20M
12:19 | 9:04/mi
21M
3:06:13
Rank: #19523 (+290)
20M → 21M
9:18 | 9:18/mi
35K· 21.75 mi
3:12:46
Rank: #19435 (+88)
21M → 35K
6:33 | 8:45/mi
23M
3:23:57
Rank: #19233 (+202)
35K → 23M
11:11 | 8:56/mi
24M
3:32:57
Rank: #19155 (+78)
23M → 24M
9:00 | 9:00/mi
40K· 24.85 mi
3:40:50
Rank: #19079 (+76)
24M → 40K
7:53 | 9:13/mi
25.2M
3:44:18
Rank: #19048 (+31)
40K → 25.2M
3:28 | 10:03/mi
Finish· 26.22 mi
3:53:13
Rank: #18978 (+70)
25.2M → Finish
8:55 | 8:45/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:55:16
Pace8:48 /mi
2nd Half
Distance13.11 mi
Time1:57:57
Pace9:00 /mi
📊Positive Split: 2.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:22:1026:568:4026:56
8:40
-
10K
6.21 mi11:49:3554:218:4527:25
8:49
+0:09
15K
9.32 mi12:17:021:21:488:4727:27
8:50
+0:01
20K
12.43 mi12:44:351:49:218:4827:33
8:52
+0:02
Half
13.11 mi12:50:301:55:168:485:55
8:40
-0:12
25K
15.53 mi13:11:552:16:418:4821:25
8:50
+0:10
30K
18.64 mi13:39:502:44:368:5027:55
8:59
+0:09
20M
20.00 mi13:52:092:56:558:5112:19
9:04
+0:05
21M
21.00 mi14:01:273:06:138:529:18
9:18
+0:14
35K
21.75 mi14:08:003:12:468:526:33
8:45
-0:33
23M
23.00 mi14:19:113:23:578:5211:11
8:56
+0:11
24M
24.00 mi14:28:113:32:578:529:00
9:00
+0:04
40K
24.85 mi14:36:043:40:508:537:53
9:13
+0:13
25.2M
25.20 mi14:39:323:44:188:543:28
10:03
+0:50
Finish
26.22 mi14:48:273:53:138:548:55
8:45
-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

8:40 /mi

Average Pace

8:54 /mi

Slowest Pace

10:03 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:49:45

99% of race

Time at Steady Pace

3:28

1% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:54 /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 mi11:22:1026:568:4026:56
8:40
#20869
10K
6.21 mi11:49:3554:218:4527:25
8:49
#21151
15K
9.32 mi12:17:021:21:488:4727:27
8:50
#21132
20K
12.43 mi12:44:351:49:218:4827:33
8:52
#20935
Half
13.11 mi12:50:301:55:168:485:55
8:40
#20885
25K
15.53 mi13:11:552:16:418:4821:25
8:50
#20622
30K
18.64 mi13:39:502:44:368:5027:55
8:59
#20038
20M
20.00 mi13:52:092:56:558:5112:19
9:04
#19813
21M
21.00 mi14:01:273:06:138:529:18
9:18
#19523
35K
21.75 mi14:08:003:12:468:526:33
8:45
#19435
23M
23.00 mi14:19:113:23:578:5211:11
8:56
#19233
24M
24.00 mi14:28:113:32:578:529:00
9:00
#19155
40K
24.85 mi14:36:043:40:508:537:53
9:13
#19079
25.2M
25.20 mi14:39:323:44:188:543:28
10:03
#19048
Finish
26.22 mi14:48:273:53:138:548:55
8:45
#18978
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi208698006800621202(Top 75%)8109(Top 66%)8109(Top 447%)
10K6.21 mi3.10 mi21151-2828130-1248130-12421522(Top 76%)8317(Top 68%)8317(Top 459%)
15K9.32 mi3.11 mi21132+198106+248106+2421202(Top 75%)8109(Top 66%)8109(Top 447%)
20K12.43 mi3.11 mi20935+1977996+1107996+11020313(Top 72%)7656(Top 63%)7656(Top 422%)
Half13.11 mi0.68 mi20885+507968+287968+2820224(Top 71%)7597(Top 62%)7597(Top 419%)
25K15.53 mi2.42 mi20622+2637837+1317837+13119118(Top 67%)7038(Top 58%)7038(Top 388%)
30K18.64 mi3.11 mi20038+5847548+2897548+28917635(Top 62%)6382(Top 52%)6382(Top 352%)
20M20.00 mi1.36 mi19813+2257441+1077441+10717170(Top 60%)6241(Top 51%)6241(Top 344%)
21M21.00 mi1.00 mi19523+2907301+1407301+14015190(Top 53%)5294(Top 43%)5294(Top 292%)
35K21.75 mi0.75 mi19435+887266+357266+3517075(Top 60%)6396(Top 52%)6396(Top 353%)
23M23.00 mi1.25 mi19233+2027179+877179+8715901(Top 56%)5839(Top 48%)5839(Top 322%)
24M24.00 mi1.00 mi19155+787157+227157+2217397(Top 61%)6710(Top 55%)6710(Top 370%)
40K24.85 mi0.85 mi19079+767137+207137+2017478(Top 62%)6854(Top 56%)6854(Top 378%)
25.2M25.20 mi0.35 mi19048+317136+17136+117316(Top 61%)6766(Top 55%)6766(Top 373%)
Finish26.22 mi1.02 mi18978+707116+207116+2017806(Top 63%)6989(Top 57%)6989(Top 385%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 75%
×21stories
+97ft-345ft

Overall

21202

Females

8109

F45-49

8109

5K→10K

3.1 - 6.2 mi

Top 76%
×5stories
+79ft-138ft

Overall

21522

Females

8317

F45-49

8317

10K→15K

6.2 - 9.3 mi

Top 75%
×3stories
+67ft-78ft

Overall

21202

Females

8109

F45-49

8109

15K→20K

9.3 - 12.4 mi

Top 72%
×5stories
+106ft-86ft

Overall

20313

Females

7656

F45-49

7656

20K→Half

12.4 - 13.1 mi

Top 71%
×2stories
+19ft-37ft

Overall

20224

Females

7597

F45-49

7597

Half→25K

13.1 - 15.5 mi

Top 67%
×4stories
+66ft-88ft

Overall

19118

Females

7038

F45-49

7038

25K→30K

15.5 - 18.6 mi

Top 62%
×9stories
+181ft-148ft

Overall

17635

Females

6382

F45-49

6382

30K→20M

18.6 - 20.0 mi

Top 60%
×5stories
+64ft-50ft

Overall

17170

Females

6241

F45-49

6241

20M→21M

20.0 - 21.0 mi

Top 53%
×8stories
+106ft-24ft

Overall

15190

Females

5294

F45-49

5294

21M→35K

21.0 - 21.8 mi

Top 60%
×7stories
+17ft-86ft

Overall

17075

Females

6396

F45-49

6396

35K→23M

21.8 - 23.0 mi

Top 56%
×5stories
+23ft-63ft

Overall

15901

Females

5839

F45-49

5839

23M→24M

23.0 - 24.0 mi

Top 61%
×6stories
+12ft-82ft

Overall

17397

Females

6710

F45-49

6710

24M→40K

24.0 - 24.9 mi

Top 62%
×1story
+6ft-20ft

Overall

17478

Females

6854

F45-49

6854

40K→25.2M

24.9 - 25.2 mi

Top 61%
×1story
+13ft-16ft

Overall

17316

Females

6766

F45-49

6766

25.2M→Finish

25.2 - 26.2 mi

Top 63%
×2stories
+22ft-21ft

Overall

17806

Females

6989

F45-49

6989

Passing Analysis

Category:
Athletes Passed
2794
Passed By
903
Net Change
+1891
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#20869
5K → 10K157439-282#20869#21151
10K → 15K203184+19#21151#21132
15K → 20K28588+197#21132#20935
20K → Half599+50#20935#20885
Half → 25K29936+263#20885#20622
25K → 30K59814+584#20622#20038
30K → 20M23611+225#20038#19813
20M → 21M2944+290#19813#19523
21M → 35K10416+88#19523#19435
35K → 23M21210+202#19435#19233
23M → 24M10022+78#19233#19155
24M → 40K10731+76#19155#19079
40K → 25.2M5120+31#19079#19048
25.2M → Finish8919+70#19048#18978
TOTALS2794903+1891
📊

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