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BOSTON MARATHON 2025

Samantha Macintyre

CO

Bib: 13525 F

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 38%
Gender (Female)
#0 / 12228
Top 21%
Division (F18-39)
#0 / 5469
Top 37%
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
7:22/mi
22:54
↑ 97↓ 3451.5%
220 ft elev
10K· 6.21 mi
7:16/mi
45:29
↑ 79↓ 1380.4%
157 ft elev
15K· 9.32 mi
7:16/mi
1:08:05
↑ 67↓ 78
146 ft elev
20K· 12.43 mi
7:34/mi
1:31:37
↑ 106↓ 860.1%
165 ft elev
Half· 13.11 mi
7:30/mi
1:36:44
↑ 19↓ 370.5%
148 ft elev
25K· 15.53 mi
7:45/mi
1:55:31
↑ 66↓ 880.2%
127 ft elev
30K· 18.64 mi
8:00/mi
2:20:23
↑ 181↓ 1480.2%
138 ft elev
20M
8:07/mi
2:31:25
↑ 64↓ 500.2%
148 ft elev
21M
8:30/mi
2:39:55
↑ 106↓ 241.6%
227 ft elev
35K· 21.75 mi
7:48/mi
2:45:45
↑ 17↓ 861.7%
156 ft elev
23M
8:14/mi
2:56:03
↑ 23↓ 630.6%
116 ft elev
24M
8:03/mi
3:04:06
↓ 821.3%
34 ft elev
40K· 24.85 mi
8:14/mi
3:11:08
↓ 200.3%
20 ft elev
25.2M
9:02/mi
3:14:15
↑ 13↓ 160.2%
18 ft elev
Finish· 26.22 mi
7:45/mi
3:22:09
↑ 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
1:36:447:23 /mi⚡ faster
2nd Half
1:45:258:02 /mi+9.0%
Positive split — 9.0% 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
22:547:223.11 mi22:54
7:22
-
10K
45:297:193.10 mi22:35
7:16
-0:06
15K
1:08:057:183.11 mi22:36
7:16
0:00
20K
1:31:377:223.11 mi23:32
7:34
+0:18
Half(13.11 mi)
1:36:447:230.68 mi5:07
7:30
-0:04
25K
1:55:317:262.42 mi18:47
7:45
+0:15
30K
2:20:237:323.11 mi24:52
8:00
+0:15
20M
2:31:257:341.36 mi11:02
8:07
+0:07
21M
2:39:557:371.00 mi8:30
8:30
+0:23
35K
2:45:457:370.75 mi5:50
7:48
-0:42
23M
2:56:037:391.25 mi10:18
8:14
+0:26
24M
3:04:067:401.00 mi8:03
8:03
-0:11
40K
3:11:087:410.85 mi7:02
8:14
+0:11
25.2M
3:14:157:430.35 mi3:07
9:02
+0:48
Finish(26.22 mi)
3:22:097:431.02 mi7:54
7:45
-1:17
Trend:
Faster pace
Steady pace
Slower pace

Checkpoints & Pacing

Pace Line

Fastest Pace

7:16 /mi

Average Pace

7:43 /mi

Slowest Pace

9:02 /mi

Loading chart...
Fastest
Middle
Slowest
Average

Segments

Time at Faster Pace

1:13:12

36% of race

Time at Steady Pace

1:20:55

40% of race

Time at Slower Pace

48:02

24% of race

Average Pace: 7:43 /mi

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

Heatmap

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

Checkpoint and Segment Rankings

CheckpointSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi1106823202320980118031803
10K3.10 mi10513+5552061+2592061+2591011018781878
15K3.11 mi10248+2651951+1101951+110980118031803
20K3.11 mi10518-2702109-1582109-1581139726822682
Half(13.11 mi)0.68 mi10570-522133-242133-241175427932793
25K2.42 mi10769-1992270-1372270-1371192730763076
30K3.11 mi10879-1102401-1312401-1311141129812981
20M1.36 mi10867+122444-432444-431125330583058
21M1.00 mi10794+732445-12445-11048628452845
35K0.75 mi10788+62466-212466-211083330163016
23M1.25 mi10777+112497-312497-311154134963496
24M1.00 mi10778-12540-432540-431159836133613
40K0.85 mi10796-182582-422582-421172537603760
25.2M0.35 mi10804-82601-192601-191203739783978
Finish(26.22 mi)1.02 mi10777+272621-202621-201111135093509

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 35%
×21story building
+97ft-345ft

Overall

9801

Females

1803

F18-39

1803

5K→10K

3.1 - 6.2 mi

Top 36%
×5story building
+79ft-138ft

Overall

10110

Females

1878

F18-39

1878

10K→15K

6.2 - 9.3 mi

Top 35%
×3story building
+67ft-78ft

Overall

9801

Females

1803

F18-39

1803

15K→20K

9.3 - 12.4 mi

Top 40%
×5story building
+106ft-86ft

Overall

11397

Females

2682

F18-39

2682

20K→Half

12.4 - 13.1 mi

Top 41%
×2story building
+19ft-37ft

Overall

11754

Females

2793

F18-39

2793

Half→25K

13.1 - 15.5 mi

Top 42%
×4story building
+66ft-88ft

Overall

11927

Females

3076

F18-39

3076

25K→30K

15.5 - 18.6 mi

Top 40%
×9story building
+181ft-148ft

Overall

11411

Females

2981

F18-39

2981

30K→20M

18.6 - 20.0 mi

Top 40%
×5story building
+64ft-50ft

Overall

11253

Females

3058

F18-39

3058

20M→21M

20.0 - 21.0 mi

Top 37%
×8story building
+106ft-24ft

Overall

10486

Females

2845

F18-39

2845

21M→35K

21.0 - 21.8 mi

Top 38%
×7story building
+17ft-86ft

Overall

10833

Females

3016

F18-39

3016

35K→23M

21.8 - 23.0 mi

Top 41%
×5story building
+23ft-63ft

Overall

11541

Females

3496

F18-39

3496

23M→24M

23.0 - 24.0 mi

Top 41%
×6story building
+12ft-82ft

Overall

11598

Females

3613

F18-39

3613

24M→40K

24.0 - 24.9 mi

Top 41%
×1story
+6ft-20ft

Overall

11725

Females

3760

F18-39

3760

40K→25.2M

24.9 - 25.2 mi

Top 42%
×1story
+13ft-16ft

Overall

12037

Females

3978

F18-39

3978

25.2M→Finish

25.2 - 26.2 mi

Top 39%
×2story building
+22ft-21ft

Overall

11111

Females

3509

F18-39

3509

Passing Analysis

Category:
Passed
2080
Passed By
1788
Net Change
+291
SegmentPassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#11068
5K → 10K62368+555#11068#10513
10K → 15K32459+265#10513#10248
15K → 20K105374-270#10248#10518
20K → Half2173-52#10518#10570
Half → 25K115314-199#10570#10769
25K → 30K209319-110#10769#10879
30K → 20M118106+12#10879#10867
20M → 21M13158+73#10867#10794
21M → 35K5852+6#10794#10788
35K → 23M116105+11#10788#10777
23M → 24M8384-1#10777#10778
24M → 40K6179-18#10778#10796
40K → 25.2M2937-8#10796#10804
25.2M → Finish8760+27#10804#10777
TOTALS20801788+291

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