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BOSTON MARATHON 2025

Samantha Young

NC

Bib: 17215 F

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 44%
Gender (Female)
#0 / 12228
Top 28%
Division (F18-39)
#0 / 5469
Top 47%
Race Day Weather
50°/40°F
broken clouds

Race Timeline

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
469 ft elev
5K· 3.11 mi
7:03/mi
21:55
↑ 97↓ 3451.5%
220 ft elev
10K· 6.21 mi
7:09/mi
44:09
↑ 79↓ 1380.4%
157 ft elev
15K· 9.32 mi
7:07/mi
1:06:17
↑ 67↓ 78
146 ft elev
20K· 12.43 mi
7:17/mi
1:28:54
↑ 106↓ 860.1%
165 ft elev
Half· 13.11 mi
7:12/mi
1:33:49
↑ 19↓ 370.5%
148 ft elev
25K· 15.53 mi
7:36/mi
1:52:15
↑ 66↓ 880.2%
127 ft elev
30K· 18.64 mi
7:56/mi
2:16:55
↑ 181↓ 1480.2%
138 ft elev
20M
8:37/mi
2:28:38
↑ 64↓ 500.2%
148 ft elev
21M
10:09/mi
2:38:47
↑ 106↓ 241.6%
227 ft elev
35K· 21.75 mi
9:00/mi
2:45:31
↑ 17↓ 861.7%
156 ft elev
23M
9:47/mi
2:57:46
↑ 23↓ 630.6%
116 ft elev
24M
9:18/mi
3:07:04
↓ 821.3%
34 ft elev
40K· 24.85 mi
9:38/mi
3:15:18
↓ 200.3%
20 ft elev
25.2M
9:49/mi
3:18:41
↑ 13↓ 160.2%
18 ft elev
Finish· 26.22 mi
8:38/mi
3:27:29
↑ 22↓ 21
17 ft elev
Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent

The Course

Half Splits

1st Half· via Half
1:33:497:09 /mi⚡ faster
2nd Half
1:53:408:40 /mi+21.2%
Positive split — 21.2% slower in the second half
Is this your race?

Your race, unpacked

See your splits, ranks & AI insights.

Checkpoint Splits

CheckpointTimeAvg PaceSegment LengthSegment TimeSegment PaceTrendDiff
5K
21:557:033.11 mi21:55
7:03
-
10K
44:097:063.10 mi22:14
7:09
+0:06
15K
1:06:177:073.11 mi22:08
7:07
-0:02
20K
1:28:547:093.11 mi22:37
7:17
+0:10
Half(13.11 mi)
1:33:497:090.68 mi4:55
7:12
-0:05
25K
1:52:157:142.42 mi18:26
7:36
+0:24
30K
2:16:557:213.11 mi24:40
7:56
+0:20
20M
2:28:387:261.36 mi11:43
8:37
+0:41
21M
2:38:477:341.00 mi10:09
10:09
+1:32
35K
2:45:317:370.75 mi6:44
9:00
-1:09
23M
2:57:467:441.25 mi12:15
9:47
+0:47
24M
3:07:047:481.00 mi9:18
9:18
-0:29
40K
3:15:187:510.85 mi8:14
9:38
+0:20
25.2M
3:18:417:530.35 mi3:23
9:49
+0:11
Finish(26.22 mi)
3:27:297:551.02 mi8:48
8:38
-1:11
Trend:
Faster pace
Steady pace
Slower pace

Checkpoints & Pacing

Pace Line

Fastest Pace

7:03 /mi

Average Pace

7:55 /mi

Slowest Pace

10:09 /mi

Loading chart...
Fastest
Middle
Slowest
Average

Segments

Time at Faster Pace

2:16:55

66% of race

Time at Steady Pace

27:15

13% of race

Time at Slower Pace

43:19

21% of race

Average Pace: 7:55 /mi

Loading chart...
Faster pace (< avg)
Steady pace (≈ avg)
Slower pace (> avg)

Heatmap

Loading...
0mi6.6mi13.1mi19.7mi26.2mi
Pace:
Faster
Steady
Slower

Checkpoint and Segment Rankings

CheckpointSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi827310901090851612401240
10K3.10 mi8690-4171254-1641254-164914314381438
15K3.11 mi8590+1001229+251229+25851612401240
20K3.11 mi8582+81247-181247-18890614901490
Half(13.11 mi)0.68 mi8603-211269-221269-22924016251625
25K2.42 mi8925-3221414-1451414-1451080924962496
30K3.11 mi9245-3201617-2031617-2031097527762776
20M1.36 mi9654-4091838-2211838-2211456248034803
21M1.00 mi10343-6892217-3792217-3791885972577257
35K0.75 mi10691-3482406-1892406-1891822670187018
23M1.25 mi11378-6872822-4162822-4161974579107910
24M1.00 mi11807-4293076-2543076-2541882174467446
40K0.85 mi12164-3573291-2153291-2151920477247724
25.2M0.35 mi12234-703337-463337-461615261376137
Finish(26.22 mi)1.02 mi12447-2133472-1353472-1351708865936593

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 30%
×21story building
+97ft-345ft

Overall

8516

Females

1240

F18-39

1240

5K→10K

3.1 - 6.2 mi

Top 32%
×5story building
+79ft-138ft

Overall

9143

Females

1438

F18-39

1438

10K→15K

6.2 - 9.3 mi

Top 30%
×3story building
+67ft-78ft

Overall

8516

Females

1240

F18-39

1240

15K→20K

9.3 - 12.4 mi

Top 31%
×5story building
+106ft-86ft

Overall

8906

Females

1490

F18-39

1490

20K→Half

12.4 - 13.1 mi

Top 33%
×2story building
+19ft-37ft

Overall

9240

Females

1625

F18-39

1625

Half→25K

13.1 - 15.5 mi

Top 38%
×4story building
+66ft-88ft

Overall

10809

Females

2496

F18-39

2496

25K→30K

15.5 - 18.6 mi

Top 39%
×9story building
+181ft-148ft

Overall

10975

Females

2776

F18-39

2776

30K→20M

18.6 - 20.0 mi

Top 51%
×5story building
+64ft-50ft

Overall

14562

Females

4803

F18-39

4803

20M→21M

20.0 - 21.0 mi

Top 66%
×8story building
+106ft-24ft

Overall

18859

Females

7257

F18-39

7257

21M→35K

21.0 - 21.8 mi

Top 64%
×7story building
+17ft-86ft

Overall

18226

Females

7018

F18-39

7018

35K→23M

21.8 - 23.0 mi

Top 70%
×5story building
+23ft-63ft

Overall

19745

Females

7910

F18-39

7910

23M→24M

23.0 - 24.0 mi

Top 66%
×6story building
+12ft-82ft

Overall

18821

Females

7446

F18-39

7446

24M→40K

24.0 - 24.9 mi

Top 68%
×1story
+6ft-20ft

Overall

19204

Females

7724

F18-39

7724

40K→25.2M

24.9 - 25.2 mi

Top 57%
×1story
+13ft-16ft

Overall

16152

Females

6137

F18-39

6137

25.2M→Finish

25.2 - 26.2 mi

Top 60%
×2story building
+22ft-21ft

Overall

17088

Females

6593

F18-39

6593

Passing Analysis

Category:
Passed
843
Passed By
5014
Net Change
-4174
SegmentPassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#8273
5K → 10K76493-417#8273#8690
10K → 15K212112+100#8690#8590
15K → 20K177169+8#8590#8582
20K → Half2849-21#8582#8603
Half → 25K70392-322#8603#8925
25K → 30K136456-320#8925#9245
30K → 20M30438-409#9245#9654
20M → 21M13700-689#9654#10343
21M → 35K7355-348#10343#10691
35K → 23M12699-687#10691#11378
23M → 24M22451-429#11378#11807
24M → 40K17374-357#11807#12164
40K → 25.2M1989-70#12164#12234
25.2M → Finish24237-213#12234#12447
TOTALS8435014-4174

Passing Charts

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