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BOSTON MARATHON 2025

Sally Kirklewski

GA

Bib: 12320 F

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 32%
Gender (Female)
#0 / 12228
Top 15%
Division (F18-39)
#0 / 5469
Top 26%
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
7:32/mi
23:25
↑ 97↓ 3451.5%
220 ft elev
10K· 6.21 mi
7:31/mi
46:45
↑ 79↓ 1380.4%
157 ft elev
15K· 9.32 mi
7:28/mi
1:09:58
↑ 67↓ 78
146 ft elev
20K· 12.43 mi
7:32/mi
1:33:22
↑ 106↓ 860.1%
165 ft elev
Half· 13.11 mi
7:27/mi
1:38:27
↑ 19↓ 370.5%
148 ft elev
25K· 15.53 mi
7:27/mi
1:56:32
↑ 66↓ 880.2%
127 ft elev
30K· 18.64 mi
7:30/mi
2:19:49
↑ 181↓ 1480.2%
138 ft elev
20M
7:33/mi
2:30:04
↑ 64↓ 500.2%
148 ft elev
21M
7:49/mi
2:37:53
↑ 106↓ 241.6%
227 ft elev
35K· 21.75 mi
7:25/mi
2:43:26
↑ 17↓ 861.7%
156 ft elev
23M
7:39/mi
2:53:01
↑ 23↓ 630.6%
116 ft elev
24M
7:30/mi
3:00:31
↓ 821.3%
34 ft elev
40K· 24.85 mi
7:33/mi
3:06:58
↓ 200.3%
20 ft elev
25.2M
7:50/mi
3:09:40
↑ 13↓ 160.2%
18 ft elev
Finish· 26.22 mi
6:46/mi
3:16:34
↑ 22↓ 21
17 ft elev
Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:38:27
Pace7:31 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:38:07
Pace7:29 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:50:4223:257:3223:25
7:32
-
10K
6.21 mi11:14:0246:457:3123:20
7:31
-0:01
15K
9.32 mi11:37:151:09:587:3023:13
7:28
-0:03
20K
12.43 mi12:00:391:33:227:3123:24
7:32
+0:04
Half
13.11 mi12:05:441:38:277:315:05
7:27
-0:05
25K
15.53 mi12:23:491:56:327:3018:05
7:27
0:00
30K
18.64 mi12:47:062:19:497:3023:17
7:30
+0:03
20M
20.00 mi12:57:212:30:047:3010:15
7:33
+0:03
21M
21.00 mi13:05:102:37:537:317:49
7:49
+0:16
35K
21.75 mi13:10:432:43:267:315:33
7:25
-0:24
23M
23.00 mi13:20:182:53:017:319:35
7:39
+0:14
24M
24.00 mi13:27:483:00:317:317:30
7:30
-0:09
40K
24.85 mi13:34:153:06:587:316:27
7:33
+0:03
25.2M
25.20 mi13:36:573:09:407:322:42
7:50
+0:17
Finish
26.22 mi13:43:513:16:347:306:54
6:46
-1:04

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

6:46 /mi

Average Pace

7:30 /mi

Slowest Pace

7:50 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

12:27

6% of race

Time at Steady Pace

3:04:07

94% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:30 /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 mi10:50:4223:257:3223:25
7:32
#12582
10K
6.21 mi11:14:0246:457:3123:20
7:31
#12341
15K
9.32 mi11:37:151:09:587:3023:13
7:28
#12040
20K
12.43 mi12:00:391:33:227:3123:24
7:32
#11748
Half
13.11 mi12:05:441:38:277:315:05
7:27
#11719
25K
15.53 mi12:23:491:56:327:3018:05
7:27
#11347
30K
18.64 mi12:47:062:19:497:3023:17
7:30
#10601
20M
20.00 mi12:57:212:30:047:3010:15
7:33
#10275
21M
21.00 mi13:05:102:37:537:317:49
7:49
#9973
35K
21.75 mi13:10:432:43:267:315:33
7:25
#9873
23M
23.00 mi13:20:182:53:017:319:35
7:39
#9701
24M
24.00 mi13:27:483:00:317:317:30
7:30
#9561
40K
24.85 mi13:34:153:06:587:316:27
7:33
#9439
25.2M
25.20 mi13:36:573:09:407:322:42
7:50
#9318
Finish
26.22 mi13:43:513:16:347:306:54
6:46
#9049
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi12582310131011153326492649
10K6.21 mi3.10 mi12341+2412982+1192982+1191219529202920
15K9.32 mi3.11 mi12040+3012859+1232859+1231153326492649
20K12.43 mi3.11 mi11748+2922739+1202739+1201103424862486
Half13.11 mi0.68 mi11719+292721+182721+181132325682568
25K15.53 mi2.42 mi11347+3722565+1562565+156961819311931
30K18.64 mi3.11 mi10601+7462257+3082257+308771712811281
20M20.00 mi1.36 mi10275+3262130+1272130+127734512911291
21M21.00 mi1.00 mi9973+3022015+1152015+115632310401040
35K21.75 mi0.75 mi9873+1001996+191996+19809717231723
23M23.00 mi1.25 mi9701+1721951+451951+45763516691669
24M24.00 mi1.00 mi9561+1401926+251926+25772017531753
40K24.85 mi0.85 mi9439+1221904+221904+22709015921592
25.2M25.20 mi0.35 mi9318+1211871+331871+335140938938
Finish26.22 mi1.02 mi9049+2691790+811790+814370663663

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 41%
×21story building
+97ft-345ft

Overall

11533

Females

2649

F18-39

2649

5K→10K

3.1 - 6.2 mi

Top 43%
×5story building
+79ft-138ft

Overall

12195

Females

2920

F18-39

2920

10K→15K

6.2 - 9.3 mi

Top 41%
×3story building
+67ft-78ft

Overall

11533

Females

2649

F18-39

2649

15K→20K

9.3 - 12.4 mi

Top 39%
×5story building
+106ft-86ft

Overall

11034

Females

2486

F18-39

2486

20K→Half

12.4 - 13.1 mi

Top 40%
×2story building
+19ft-37ft

Overall

11323

Females

2568

F18-39

2568

Half→25K

13.1 - 15.5 mi

Top 34%
×4story building
+66ft-88ft

Overall

9618

Females

1931

F18-39

1931

25K→30K

15.5 - 18.6 mi

Top 27%
×9story building
+181ft-148ft

Overall

7717

Females

1281

F18-39

1281

30K→20M

18.6 - 20.0 mi

Top 26%
×5story building
+64ft-50ft

Overall

7345

Females

1291

F18-39

1291

20M→21M

20.0 - 21.0 mi

Top 22%
×8story building
+106ft-24ft

Overall

6323

Females

1040

F18-39

1040

21M→35K

21.0 - 21.8 mi

Top 29%
×7story building
+17ft-86ft

Overall

8097

Females

1723

F18-39

1723

35K→23M

21.8 - 23.0 mi

Top 27%
×5story building
+23ft-63ft

Overall

7635

Females

1669

F18-39

1669

23M→24M

23.0 - 24.0 mi

Top 27%
×6story building
+12ft-82ft

Overall

7720

Females

1753

F18-39

1753

24M→40K

24.0 - 24.9 mi

Top 25%
×1story
+6ft-20ft

Overall

7090

Females

1592

F18-39

1592

40K→25.2M

24.9 - 25.2 mi

Top 18%
×1story
+13ft-16ft

Overall

5140

Females

938

F18-39

938

25.2M→Finish

25.2 - 26.2 mi

Top 15%
×2story building
+22ft-21ft

Overall

4370

Females

663

F18-39

663

Passing Analysis

Category:
Athletes Passed
3956*
Passed By
423
Net Change
+3533
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#12582
5K → 10K416175+241#12582#12341
10K → 15K36867+301#12341#12040
15K → 20K34856+292#12040#11748
20K → Half4617+29#11748#11719
Half → 25K38513+372#11719#11347
25K → 30K7526+746#11347#10601
30K → 20M3315+326#10601#10275
20M → 21M309*7+302#10275#9973
21M → 35K11919+100#9973#9873
35K → 23M19220+172#9873#9701
23M → 24M16222+140#9701#9561
24M → 40K13614+122#9561#9439
40K → 25.2M1221+121#9439#9318
25.2M → Finish2701+269#9318#9049
TOTALS3956*423+3533

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

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