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BOSTON MARATHON 2025

Sabrina Skelly

Bib: 14808•F

OR

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 24%
Gender (Female)
#0 / 12228
Top 8%
Division (F18-39)
#0 / 5469
Top 15%
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
7:17/mi
22:38
↑ 97↓ 3451.5%
10K· 6.21 mi
7:05/mi
44:39
↑ 79↓ 1380.4%
15K· 9.32 mi
7:00/mi
1:06:25
↑ 67↓ 78
20K· 12.43 mi
7:00/mi
1:28:10
↑ 106↓ 860.1%
Half· 13.11 mi
7:04/mi
1:32:59
↑ 19↓ 370.5%
25K· 15.53 mi
7:03/mi
1:50:05
↑ 66↓ 880.2%
30K· 18.64 mi
7:22/mi
2:12:59
↑ 181↓ 1480.2%
20M
7:30/mi
2:23:11
↑ 64↓ 500.2%
21M
7:54/mi
2:31:05
↑ 106↓ 241.6%
35K· 21.75 mi
7:12/mi
2:36:28
↑ 17↓ 861.7%
23M
7:34/mi
2:45:56
↑ 23↓ 630.6%
24M
7:16/mi
2:53:12
↓ 821.3%
40K· 24.85 mi
7:27/mi
2:59:34
↓ 200.3%
25.2M
8:07/mi
3:02:22
↑ 13↓ 160.2%
Finish· 26.22 mi
7:09/mi
3:09:39
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:32:59
Pace7:06 /mi
2nd Half
Distance13.11 mi
Time1:36:40
Pace7:22 /mi
📊Positive Split: 4.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:54:1822:387:1722:38
7:17
-
10K
6.21 mi11:16:1944:397:1122:01
7:05
-0:12
15K
9.32 mi11:38:051:06:257:0821:46
7:00
-0:05
20K
12.43 mi11:59:501:28:107:0621:45
7:00
0:00
Half
13.11 mi12:04:391:32:597:064:49
7:04
+0:04
25K
15.53 mi12:21:451:50:057:0517:06
7:03
-0:01
30K
18.64 mi12:44:392:12:597:0822:54
7:22
+0:19
20M
20.00 mi12:54:512:23:117:1010:12
7:30
+0:08
21M
21.00 mi13:02:452:31:057:127:54
7:54
+0:24
35K
21.75 mi13:08:082:36:287:125:23
7:12
-0:42
23M
23.00 mi13:17:362:45:567:139:28
7:34
+0:22
24M
24.00 mi13:24:522:53:127:137:16
7:16
-0:18
40K
24.85 mi13:31:142:59:347:136:22
7:27
+0:11
25.2M
25.20 mi13:34:023:02:227:142:48
8:07
+0:40
Finish
26.22 mi13:41:193:09:397:147:17
7:09
-0:58

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

7:00 /mi

Average Pace

7:14 /mi

Slowest Pace

8:07 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:58:57

94% of race

Time at Steady Pace

10:42

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:14 /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 mi10:54:1822:387:1722:38
7:17
#10206
10K
6.21 mi11:16:1944:397:1122:01
7:05
#9342
15K
9.32 mi11:38:051:06:257:0821:46
7:00
#8713
20K
12.43 mi11:59:501:28:107:0621:45
7:00
#8145
Half
13.11 mi12:04:391:32:597:064:49
7:04
#8126
25K
15.53 mi12:21:451:50:057:0517:06
7:03
#7834
30K
18.64 mi12:44:392:12:597:0822:54
7:22
#7567
20M
20.00 mi12:54:512:23:117:1010:12
7:30
#7448
21M
21.00 mi13:02:452:31:057:127:54
7:54
#7346
35K
21.75 mi13:08:082:36:287:125:23
7:12
#7280
23M
23.00 mi13:17:362:45:567:139:28
7:34
#7196
24M
24.00 mi13:24:522:53:127:137:16
7:16
#7115
40K
24.85 mi13:31:142:59:347:136:22
7:27
#7048
25.2M
25.20 mi13:34:023:02:227:142:48
8:07
#7028
Finish
26.22 mi13:41:193:09:397:147:17
7:09
#6953
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi10206189618967674(Top 27%)924(Top 8%)924(Top 17%)
10K6.21 mi3.10 mi9342+8641515+3811515+3818565(Top 30%)1199(Top 10%)1199(Top 22%)
15K9.32 mi3.11 mi8713+6291275+2401275+2407674(Top 27%)924(Top 8%)924(Top 17%)
20K12.43 mi3.11 mi8145+5681078+1971078+1976877(Top 24%)749(Top 6%)749(Top 14%)
Half13.11 mi0.68 mi8126+191074+41074+48051(Top 28%)1095(Top 9%)1095(Top 20%)
25K15.53 mi2.42 mi7834+292985+89985+896677(Top 24%)778(Top 6%)778(Top 14%)
30K18.64 mi3.11 mi7567+267940+45940+456891(Top 24%)965(Top 8%)965(Top 18%)
20M20.00 mi1.36 mi7448+119937+3937+37071(Top 25%)1171(Top 10%)1171(Top 21%)
21M21.00 mi1.00 mi7346+1029379376804(Top 24%)1219(Top 10%)1219(Top 22%)
35K21.75 mi0.75 mi7280+66941-4941-46605(Top 23%)1129(Top 9%)1129(Top 21%)
23M23.00 mi1.25 mi7196+84956-15956-157001(Top 25%)1393(Top 11%)1393(Top 25%)
24M24.00 mi1.00 mi7115+81955+1955+16242(Top 22%)1157(Top 9%)1157(Top 21%)
40K24.85 mi0.85 mi7048+67964-9964-96502(Top 23%)1330(Top 11%)1330(Top 24%)
25.2M25.20 mi0.35 mi7028+20972-8972-86643(Top 23%)1471(Top 12%)1471(Top 27%)
Finish26.22 mi1.02 mi6953+75973-1973-16708(Top 24%)1529(Top 13%)1529(Top 28%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 27%
×21story building
+97ft-345ft

Overall

7674

Females

924

F18-39

924

5K→10K

3.1 - 6.2 mi

Top 30%
×5story building
+79ft-138ft

Overall

8565

Females

1199

F18-39

1199

10K→15K

6.2 - 9.3 mi

Top 27%
×3story building
+67ft-78ft

Overall

7674

Females

924

F18-39

924

15K→20K

9.3 - 12.4 mi

Top 24%
×5story building
+106ft-86ft

Overall

6877

Females

749

F18-39

749

20K→Half

12.4 - 13.1 mi

Top 28%
×2story building
+19ft-37ft

Overall

8051

Females

1095

F18-39

1095

Half→25K

13.1 - 15.5 mi

Top 24%
×4story building
+66ft-88ft

Overall

6677

Females

778

F18-39

778

25K→30K

15.5 - 18.6 mi

Top 24%
×9story building
+181ft-148ft

Overall

6891

Females

965

F18-39

965

30K→20M

18.6 - 20.0 mi

Top 25%
×5story building
+64ft-50ft

Overall

7071

Females

1171

F18-39

1171

20M→21M

20.0 - 21.0 mi

Top 24%
×8story building
+106ft-24ft

Overall

6804

Females

1219

F18-39

1219

21M→35K

21.0 - 21.8 mi

Top 23%
×7story building
+17ft-86ft

Overall

6605

Females

1129

F18-39

1129

35K→23M

21.8 - 23.0 mi

Top 25%
×5story building
+23ft-63ft

Overall

7001

Females

1393

F18-39

1393

23M→24M

23.0 - 24.0 mi

Top 22%
×6story building
+12ft-82ft

Overall

6242

Females

1157

F18-39

1157

24M→40K

24.0 - 24.9 mi

Top 23%
×1story
+6ft-20ft

Overall

6502

Females

1330

F18-39

1330

40K→25.2M

24.9 - 25.2 mi

Top 23%
×1story
+13ft-16ft

Overall

6643

Females

1471

F18-39

1471

25.2M→Finish

25.2 - 26.2 mi

Top 24%
×2story building
+22ft-21ft

Overall

6708

Females

1529

F18-39

1529

Passing Analysis

Category:
Athletes Passed
3627*
Passed By
374
Net Change
+3253
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#10206
5K → 10K897*33+864#10206#9342
10K → 15K6389+629#9342#8713
15K → 20K5746+568#8713#8145
20K → Half3516+19#8145#8126
Half → 25K30412+292#8126#7834
25K → 30K32962+267#7834#7567
30K → 20M15738+119#7567#7448
20M → 21M13129+102#7448#7346
21M → 35K8216+66#7346#7280
35K → 23M13248+84#7280#7196
23M → 24M10625+81#7196#7115
24M → 40K9932+67#7115#7048
40K → 25.2M4020+20#7048#7028
25.2M → Finish10328+75#7028#6953
TOTALS3627*374+3253

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

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