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BOSTON MARATHON 2025

Kiarri Kershaw

Bib: 12714•F

IL

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 28%
Gender (Female)
#0 / 12228
Top 11%
Masters (Masters Women)
#0 / 6759
Top 3%
Division (F45-49)
#0 / 1813
Top 4%
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
7:19/mi
22:44
↑ 97↓ 3451.5%
10K· 6.21 mi
7:21/mi
45:34
↑ 79↓ 1380.4%
15K· 9.32 mi
7:19/mi
1:08:19
↑ 67↓ 78
20K· 12.43 mi
7:20/mi
1:31:06
↑ 106↓ 860.1%
Half· 13.11 mi
7:15/mi
1:36:03
↑ 19↓ 370.5%
25K· 15.53 mi
7:21/mi
1:53:53
↑ 66↓ 880.2%
30K· 18.64 mi
7:27/mi
2:17:03
↑ 181↓ 1480.2%
20M
7:30/mi
2:27:14
↑ 64↓ 500.2%
21M
7:56/mi
2:35:10
↑ 106↓ 241.6%
35K· 21.75 mi
7:02/mi
2:40:26
↑ 17↓ 861.7%
23M
7:21/mi
2:49:38
↑ 23↓ 630.6%
24M
7:14/mi
2:56:52
↓ 821.3%
40K· 24.85 mi
7:20/mi
3:03:08
↓ 200.3%
25.2M
7:18/mi
3:05:39
↑ 13↓ 160.2%
Finish· 26.22 mi
7:18/mi
3:13:05
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:36:03
Pace7:20 /mi
2nd Half
Distance13.11 mi
Time1:37:02
Pace7:24 /mi
📊Positive Split: 1.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:51:0522:447:1922:44
7:19
-
10K
6.21 mi11:13:5545:347:2022:50
7:21
+0:02
15K
9.32 mi11:36:401:08:197:2022:45
7:19
-0:02
20K
12.43 mi11:59:271:31:067:2022:47
7:20
+0:01
Half
13.11 mi12:04:241:36:037:204:57
7:15
-0:05
25K
15.53 mi12:22:141:53:537:2017:50
7:21
+0:06
30K
18.64 mi12:45:242:17:037:2123:10
7:27
+0:06
20M
20.00 mi12:55:352:27:147:2210:11
7:30
+0:03
21M
21.00 mi13:03:312:35:107:237:56
7:56
+0:26
35K
21.75 mi13:08:472:40:267:235:16
7:02
-0:54
23M
23.00 mi13:17:592:49:387:239:12
7:21
+0:19
24M
24.00 mi13:25:132:56:527:227:14
7:14
-0:07
40K
24.85 mi13:31:293:03:087:226:16
7:20
+0:06
25.2M
25.20 mi13:34:003:05:397:222:31
7:18
-0:02
Finish
26.22 mi13:41:263:13:057:227:26
7:18
0:00

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

7:02 /mi

Average Pace

7:22 /mi

Slowest Pace

7:56 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:05:09

96% of race

Time at Steady Pace

7:56

4% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:22 /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 mi10:51:0522:447:1922:44
7:19
#10545
10K
6.21 mi11:13:5545:347:2022:50
7:21
#10616
15K
9.32 mi11:36:401:08:197:2022:45
7:19
#10478
20K
12.43 mi11:59:271:31:067:2022:47
7:20
#10138
Half
13.11 mi12:04:241:36:037:204:57
7:15
#10113
25K
15.53 mi12:22:141:53:537:2017:50
7:21
#9839
30K
18.64 mi12:45:242:17:037:2123:10
7:27
#9288
20M
20.00 mi12:55:352:27:147:2210:11
7:30
#9079
21M
21.00 mi13:03:312:35:107:237:56
7:56
#8889
35K
21.75 mi13:08:472:40:267:235:16
7:02
#8715
23M
23.00 mi13:17:592:49:387:239:12
7:21
#8427
24M
24.00 mi13:25:132:56:527:227:14
7:14
#8253
40K
24.85 mi13:31:293:03:087:226:16
7:20
#8129
25.2M
25.20 mi13:34:003:05:397:222:31
7:18
#7986
Finish
26.22 mi13:41:263:13:057:227:26
7:18
#7934
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi105452053205310179(Top 36%)1962(Top 16%)1962(Top 108%)
10K6.21 mi3.10 mi10616-712116-632116-6310745(Top 38%)2176(Top 18%)2176(Top 120%)
15K9.32 mi3.11 mi10478+1382060+562060+5610179(Top 36%)1962(Top 16%)1962(Top 108%)
20K12.43 mi3.11 mi10138+3401930+1301930+1309318(Top 33%)1649(Top 13%)1649(Top 91%)
Half13.11 mi0.68 mi10113+251920+101920+109628(Top 34%)1756(Top 14%)1756(Top 97%)
25K15.53 mi2.42 mi9839+2741828+921828+928794(Top 31%)1545(Top 13%)1545(Top 85%)
30K18.64 mi3.11 mi9288+5511636+1921636+1927450(Top 26%)1187(Top 10%)1187(Top 65%)
20M20.00 mi1.36 mi9079+2091574+621574+626997(Top 25%)1153(Top 9%)1153(Top 64%)
21M21.00 mi1.00 mi8889+1901526+481526+487005(Top 25%)1303(Top 11%)1303(Top 72%)
35K21.75 mi0.75 mi8715+1741475+511475+515702(Top 20%)837(Top 7%)837(Top 46%)
23M23.00 mi1.25 mi8427+2881404+711404+715770(Top 20%)925(Top 8%)925(Top 51%)
24M24.00 mi1.00 mi8253+1741371+331371+336053(Top 21%)1088(Top 9%)1088(Top 60%)
40K24.85 mi0.85 mi8129+1241351+201351+205848(Top 21%)1080(Top 9%)1080(Top 60%)
25.2M25.20 mi0.35 mi7986+1431320+311320+312414(Top 8%)256(Top 2%)256(Top 14%)
Finish26.22 mi1.02 mi7934+521327-71327-77798(Top 27%)1996(Top 16%)1996(Top 110%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 36%
×21story building
+97ft-345ft

Overall

10179

Females

1962

F45-49

1962

5K→10K

3.1 - 6.2 mi

Top 38%
×5story building
+79ft-138ft

Overall

10745

Females

2176

F45-49

2176

10K→15K

6.2 - 9.3 mi

Top 36%
×3story building
+67ft-78ft

Overall

10179

Females

1962

F45-49

1962

15K→20K

9.3 - 12.4 mi

Top 33%
×5story building
+106ft-86ft

Overall

9318

Females

1649

F45-49

1649

20K→Half

12.4 - 13.1 mi

Top 34%
×2story building
+19ft-37ft

Overall

9628

Females

1756

F45-49

1756

Half→25K

13.1 - 15.5 mi

Top 31%
×4story building
+66ft-88ft

Overall

8794

Females

1545

F45-49

1545

25K→30K

15.5 - 18.6 mi

Top 26%
×9story building
+181ft-148ft

Overall

7450

Females

1187

F45-49

1187

30K→20M

18.6 - 20.0 mi

Top 25%
×5story building
+64ft-50ft

Overall

6997

Females

1153

F45-49

1153

20M→21M

20.0 - 21.0 mi

Top 25%
×8story building
+106ft-24ft

Overall

7005

Females

1303

F45-49

1303

21M→35K

21.0 - 21.8 mi

Top 20%
×7story building
+17ft-86ft

Overall

5702

Females

837

F45-49

837

35K→23M

21.8 - 23.0 mi

Top 20%
×5story building
+23ft-63ft

Overall

5770

Females

925

F45-49

925

23M→24M

23.0 - 24.0 mi

Top 21%
×6story building
+12ft-82ft

Overall

6053

Females

1088

F45-49

1088

24M→40K

24.0 - 24.9 mi

Top 21%
×1story
+6ft-20ft

Overall

5848

Females

1080

F45-49

1080

40K→25.2M

24.9 - 25.2 mi

Top 8%
×1story
+13ft-16ft

Overall

2414

Females

256

F45-49

256

25.2M→Finish

25.2 - 26.2 mi

Top 27%
×2story building
+22ft-21ft

Overall

7798

Females

1996

F45-49

1996

Passing Analysis

Category:
Athletes Passed
3211*
Passed By
599
Net Change
+2611
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#10545
5K → 10K235306-71#10545#10616
10K → 15K23193+138#10616#10478
15K → 20K37433+340#10478#10138
20K → Half3914+25#10138#10113
Half → 25K305*31+274#10113#9839
25K → 30K56615+551#9839#9288
30K → 20M22718+209#9288#9079
20M → 21M20616+190#9079#8889
21M → 35K1762+174#8889#8715
35K → 23M2924+288#8715#8427
23M → 24M1828+174#8427#8253
24M → 40K1328+124#8253#8129
40K → 25.2M1430+143#8129#7986
25.2M → Finish10351+52#7986#7934
TOTALS3211*599+2611

* 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