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BOSTON MARATHON 2025

Ali Kirk

Bib: 13721•F

OH

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 25%
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
7:23/mi
22:57
↑ 97↓ 3451.5%
10K· 6.21 mi
7:19/mi
45:42
↑ 79↓ 1380.4%
15K· 9.32 mi
7:19/mi
1:08:27
↑ 67↓ 78
20K· 12.43 mi
7:15/mi
1:30:59
↑ 106↓ 860.1%
Half· 13.11 mi
7:09/mi
1:35:52
↑ 19↓ 370.5%
25K· 15.53 mi
7:13/mi
1:53:23
↑ 66↓ 880.2%
30K· 18.64 mi
7:19/mi
2:16:08
↑ 181↓ 1480.2%
20M
7:17/mi
2:26:02
↑ 64↓ 500.2%
21M
7:30/mi
2:33:32
↑ 106↓ 241.6%
35K· 21.75 mi
6:58/mi
2:38:45
↑ 17↓ 861.7%
23M
7:00/mi
2:47:31
↑ 23↓ 630.6%
24M
7:00/mi
2:54:31
↓ 821.3%
40K· 24.85 mi
6:54/mi
3:00:25
↓ 200.3%
25.2M
7:35/mi
3:03:02
↑ 13↓ 160.2%
Finish· 26.22 mi
6:42/mi
3:09:52
↑ 22↓ 21

The Course

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Half Splits

1st Half· via Half
Distance13.11 mi
Time1:35:52
Pace7:19 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:34:00
Pace7:10 /mi
📊Negative Split: 1.9% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:51:3522:577:2322:57
7:23
-
10K
6.21 mi11:14:2045:427:2122:45
7:19
-0:04
15K
9.32 mi11:37:051:08:277:2122:45
7:19
0:00
20K
12.43 mi11:59:371:30:597:1922:32
7:15
-0:04
Half
13.11 mi12:04:301:35:527:194:53
7:09
-0:06
25K
15.53 mi12:22:011:53:237:1817:31
7:13
+0:04
30K
18.64 mi12:44:462:16:087:1822:45
7:19
+0:06
20M
20.00 mi12:54:402:26:027:189:54
7:17
-0:02
21M
21.00 mi13:02:102:33:327:197:30
7:30
+0:13
35K
21.75 mi13:07:232:38:457:185:13
6:58
-0:32
23M
23.00 mi13:16:092:47:317:178:46
7:00
+0:02
24M
24.00 mi13:23:092:54:317:167:00
7:00
0:00
40K
24.85 mi13:29:033:00:257:165:54
6:54
-0:06
25.2M
25.20 mi13:31:403:03:027:162:37
7:35
+0:41
Finish
26.22 mi13:38:303:09:527:156:50
6:42
-0:53

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

6:42 /mi

Average Pace

7:15 /mi

Slowest Pace

7:35 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:36:48

83% of race

Time at Steady Pace

33:04

17% 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 mi10:51:3522:577:2322:57
7:23
#11200
10K
6.21 mi11:14:2045:427:2122:45
7:19
#10815
15K
9.32 mi11:37:051:08:277:2122:45
7:19
#10593
20K
12.43 mi11:59:371:30:597:1922:32
7:15
#10065
Half
13.11 mi12:04:301:35:527:194:53
7:09
#9982
25K
15.53 mi12:22:011:53:237:1817:31
7:13
#9561
30K
18.64 mi12:44:462:16:087:1822:45
7:19
#8861
20M
20.00 mi12:54:402:26:027:189:54
7:17
#8537
21M
21.00 mi13:02:102:33:327:197:30
7:30
#8225
35K
21.75 mi13:07:232:38:457:185:13
6:58
#8057
23M
23.00 mi13:16:092:47:317:178:46
7:00
#7695
24M
24.00 mi13:23:092:54:317:167:00
7:00
#7503
40K
24.85 mi13:29:033:00:257:165:54
6:54
#7287
25.2M
25.20 mi13:31:403:03:027:162:37
7:35
#7205
Finish
26.22 mi13:38:303:09:527:156:50
6:42
#7025
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi112002367236710174(Top 36%)1957(Top 16%)1957(Top 36%)
10K6.21 mi3.10 mi10815+3852211+1562211+15610534(Top 37%)2071(Top 17%)2071(Top 38%)
15K9.32 mi3.11 mi10593+2222120+912120+9110174(Top 36%)1957(Top 16%)1957(Top 36%)
20K12.43 mi3.11 mi10065+5281896+2241896+2248653(Top 30%)1371(Top 11%)1371(Top 25%)
Half13.11 mi0.68 mi9982+831861+351861+358759(Top 31%)1371(Top 11%)1371(Top 25%)
25K15.53 mi2.42 mi9561+4211706+1551706+1557788(Top 27%)1134(Top 9%)1134(Top 21%)
30K18.64 mi3.11 mi8861+7001448+2581448+2586594(Top 23%)872(Top 7%)872(Top 16%)
20M20.00 mi1.36 mi8537+3241345+1031345+1035728(Top 20%)721(Top 6%)721(Top 13%)
21M21.00 mi1.00 mi8225+3121256+891256+894642(Top 16%)525(Top 4%)525(Top 10%)
35K21.75 mi0.75 mi8057+1681216+401216+405230(Top 18%)687(Top 6%)687(Top 13%)
23M23.00 mi1.25 mi7695+3621136+801136+803732(Top 13%)363(Top 3%)363(Top 7%)
24M24.00 mi1.00 mi7503+1921096+401096+404683(Top 16%)644(Top 5%)644(Top 12%)
40K24.85 mi0.85 mi7287+2161044+521044+523396(Top 12%)364(Top 3%)364(Top 7%)
25.2M25.20 mi0.35 mi7205+821023+211023+213911(Top 14%)545(Top 4%)545(Top 10%)
Finish26.22 mi1.02 mi7025+180995+28995+283950(Top 14%)542(Top 4%)542(Top 10%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 36%
×21story building
+97ft-345ft

Overall

10174

Females

1957

F18-39

1957

5K→10K

3.1 - 6.2 mi

Top 37%
×5story building
+79ft-138ft

Overall

10534

Females

2071

F18-39

2071

10K→15K

6.2 - 9.3 mi

Top 36%
×3story building
+67ft-78ft

Overall

10174

Females

1957

F18-39

1957

15K→20K

9.3 - 12.4 mi

Top 30%
×5story building
+106ft-86ft

Overall

8653

Females

1371

F18-39

1371

20K→Half

12.4 - 13.1 mi

Top 31%
×2story building
+19ft-37ft

Overall

8759

Females

1371

F18-39

1371

Half→25K

13.1 - 15.5 mi

Top 27%
×4story building
+66ft-88ft

Overall

7788

Females

1134

F18-39

1134

25K→30K

15.5 - 18.6 mi

Top 23%
×9story building
+181ft-148ft

Overall

6594

Females

872

F18-39

872

30K→20M

18.6 - 20.0 mi

Top 20%
×5story building
+64ft-50ft

Overall

5728

Females

721

F18-39

721

20M→21M

20.0 - 21.0 mi

Top 16%
×8story building
+106ft-24ft

Overall

4642

Females

525

F18-39

525

21M→35K

21.0 - 21.8 mi

Top 18%
×7story building
+17ft-86ft

Overall

5230

Females

687

F18-39

687

35K→23M

21.8 - 23.0 mi

Top 13%
×5story building
+23ft-63ft

Overall

3732

Females

363

F18-39

363

23M→24M

23.0 - 24.0 mi

Top 16%
×6story building
+12ft-82ft

Overall

4683

Females

644

F18-39

644

24M→40K

24.0 - 24.9 mi

Top 12%
×1story
+6ft-20ft

Overall

3396

Females

364

F18-39

364

40K→25.2M

24.9 - 25.2 mi

Top 14%
×1story
+13ft-16ft

Overall

3911

Females

545

F18-39

545

25.2M→Finish

25.2 - 26.2 mi

Top 14%
×2story building
+22ft-21ft

Overall

3950

Females

542

F18-39

542

Passing Analysis

Category:
Athletes Passed
4404*
Passed By
229
Net Change
+4175
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#11200
5K → 10K496111+385#11200#10815
10K → 15K29371+222#10815#10593
15K → 20K5368+528#10593#10065
20K → Half90*7+83#10065#9982
Half → 25K4287+421#9982#9561
25K → 30K7044+700#9561#8861
30K → 20M3251+324#8861#8537
20M → 21M3153+312#8537#8225
21M → 35K1702+168#8225#8057
35K → 23M3620+362#8057#7695
23M → 24M1964+192#7695#7503
24M → 40K2160+216#7503#7287
40K → 25.2M853+82#7287#7205
25.2M → Finish1888+180#7205#7025
TOTALS4404*229+4175

* 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