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BOSTON MARATHON 2023

Kathryn Holm

Bib: 17725•F

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 36%
Gender (Female)
#0 / 11423
Top 17%
Masters (Masters Women)
#0 / 6539
Top 7%
Division (F40-44)
#0 / 1878
Top 15%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ 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
7:35/mi
23:35
↑ 97↓ 3451.5%
10K· 6.21 mi
7:33/mi
47:01
↑ 79↓ 1380.4%
15K· 9.32 mi
7:36/mi
1:10:38
↑ 67↓ 78
20K· 12.43 mi
7:43/mi
1:34:36
↑ 106↓ 860.1%
Half· 13.11 mi
7:43/mi
1:39:52
↑ 19↓ 370.5%
25K· 15.53 mi
7:42/mi
1:58:33
↑ 66↓ 880.2%
30K· 18.64 mi
7:54/mi
2:23:07
↑ 181↓ 1480.2%
20M
8:05/mi
2:34:06
↑ 64↓ 500.2%
21M
8:05/mi
2:42:11
↑ 106↓ 241.6%
35K· 21.75 mi
7:24/mi
2:47:43
↑ 17↓ 861.7%
23M
7:44/mi
2:57:24
↑ 23↓ 630.6%
24M
7:18/mi
3:04:42
↓ 821.3%
40K· 24.85 mi
7:30/mi
3:11:07
↓ 200.3%
25.2M
8:07/mi
3:13:55
↑ 13↓ 160.2%
Finish· 26.22 mi
7:32/mi
3:21:36
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:39:52
Pace7:37 /mi
2nd Half
Distance13.11 mi
Time1:41:44
Pace7:46 /mi
📊Positive Split: 1.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:14:2823:357:3523:35
7:35
-
10K
6.21 mi11:37:5447:017:3423:26
7:33
-0:02
15K
9.32 mi12:01:311:10:387:3523:37
7:36
+0:03
20K
12.43 mi12:25:291:34:367:3723:58
7:43
+0:07
Half
13.11 mi12:30:451:39:527:375:16
7:43
0:00
25K
15.53 mi12:49:261:58:337:3818:41
7:42
-0:01
30K
18.64 mi13:14:002:23:077:4124:34
7:54
+0:12
20M
20.00 mi13:24:592:34:067:4210:59
8:05
+0:11
21M
21.00 mi13:33:042:42:117:438:05
8:05
0:00
35K
21.75 mi13:38:362:47:437:435:32
7:24
-0:41
23M
23.00 mi13:48:172:57:247:439:41
7:44
+0:20
24M
24.00 mi13:55:353:04:427:427:18
7:18
-0:26
40K
24.85 mi14:02:003:11:077:416:25
7:30
+0:12
25.2M
25.20 mi14:04:483:13:557:422:48
8:07
+0:37
Finish
26.22 mi14:12:293:21:367:427:41
7:32
-0:35

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

7:18 /mi

Average Pace

7:42 /mi

Slowest Pace

8:07 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:59:44

89% of race

Time at Steady Pace

21:52

11% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:41 /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 mi11:14:2823:357:3523:35
7:35
#10463
10K
6.21 mi11:37:5447:017:3423:26
7:33
#10618
15K
9.32 mi12:01:311:10:387:3523:37
7:36
#10748
20K
12.43 mi12:25:291:34:367:3723:58
7:43
#10810
Half
13.11 mi12:30:451:39:527:375:16
7:43
#10879
25K
15.53 mi12:49:261:58:337:3818:41
7:42
#10745
30K
18.64 mi13:14:002:23:077:4124:34
7:54
#10590
20M
20.00 mi13:24:592:34:067:4210:59
8:05
#10598
21M
21.00 mi13:33:042:42:117:438:05
8:05
#10413
35K
21.75 mi13:38:362:47:437:435:32
7:24
#10292
23M
23.00 mi13:48:172:57:247:439:41
7:44
#10125
24M
24.00 mi13:55:353:04:427:427:18
7:18
#9900
40K
24.85 mi14:02:003:11:077:416:25
7:30
#9753
25.2M
25.20 mi14:04:483:13:557:422:48
8:07
#9687
Finish
26.22 mi14:12:293:21:367:427:41
7:32
#9622
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi104632068206811032(Top 41%)2361(Top 21%)2361(Top 126%)
10K6.21 mi3.10 mi10618-1552128-602128-6010828(Top 41%)2218(Top 19%)2218(Top 118%)
15K9.32 mi3.11 mi10748-1302204-762204-7611032(Top 41%)2361(Top 21%)2361(Top 126%)
20K12.43 mi3.11 mi10810-622250-462250-4611038(Top 41%)2420(Top 21%)2420(Top 129%)
Half13.11 mi0.68 mi10879-692274-242274-2412031(Top 45%)2909(Top 25%)2909(Top 155%)
25K15.53 mi2.42 mi10745+1342217+572217+5710341(Top 39%)2148(Top 19%)2148(Top 114%)
30K18.64 mi3.11 mi10590+1552199+182199+1810200(Top 38%)2253(Top 20%)2253(Top 120%)
20M20.00 mi1.36 mi10598-82224-252224-2510935(Top 41%)2712(Top 24%)2712(Top 144%)
21M21.00 mi1.00 mi10413+1852154+702154+707851(Top 29%)1463(Top 13%)1463(Top 78%)
35K21.75 mi0.75 mi10292+1212109+452109+457830(Top 29%)1438(Top 13%)1438(Top 77%)
23M23.00 mi1.25 mi10125+1672058+512058+517984(Top 30%)1581(Top 14%)1581(Top 84%)
24M24.00 mi1.00 mi9900+2251983+751983+756420(Top 24%)1059(Top 9%)1059(Top 56%)
40K24.85 mi0.85 mi9753+1471944+391944+396806(Top 26%)1291(Top 11%)1291(Top 69%)
25.2M25.20 mi0.35 mi9687+661923+211923+217306(Top 27%)1550(Top 14%)1550(Top 83%)
Finish26.22 mi1.02 mi9622+651926-31926-38872(Top 33%)2185(Top 19%)2185(Top 116%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 41%
×21story building
+97ft-345ft

Overall

11032

Females

2361

F40-44

2361

5K→10K

3.1 - 6.2 mi

Top 41%
×5story building
+79ft-138ft

Overall

10828

Females

2218

F40-44

2218

10K→15K

6.2 - 9.3 mi

Top 41%
×3story building
+67ft-78ft

Overall

11032

Females

2361

F40-44

2361

15K→20K

9.3 - 12.4 mi

Top 41%
×5story building
+106ft-86ft

Overall

11038

Females

2420

F40-44

2420

20K→Half

12.4 - 13.1 mi

Top 45%
×2story building
+19ft-37ft

Overall

12031

Females

2909

F40-44

2909

Half→25K

13.1 - 15.5 mi

Top 39%
×4story building
+66ft-88ft

Overall

10341

Females

2148

F40-44

2148

25K→30K

15.5 - 18.6 mi

Top 38%
×9story building
+181ft-148ft

Overall

10200

Females

2253

F40-44

2253

30K→20M

18.6 - 20.0 mi

Top 41%
×5story building
+64ft-50ft

Overall

10935

Females

2712

F40-44

2712

20M→21M

20.0 - 21.0 mi

Top 29%
×8story building
+106ft-24ft

Overall

7851

Females

1463

F40-44

1463

21M→35K

21.0 - 21.8 mi

Top 29%
×7story building
+17ft-86ft

Overall

7830

Females

1438

F40-44

1438

35K→23M

21.8 - 23.0 mi

Top 30%
×5story building
+23ft-63ft

Overall

7984

Females

1581

F40-44

1581

23M→24M

23.0 - 24.0 mi

Top 24%
×6story building
+12ft-82ft

Overall

6420

Females

1059

F40-44

1059

24M→40K

24.0 - 24.9 mi

Top 26%
×1story
+6ft-20ft

Overall

6806

Females

1291

F40-44

1291

40K→25.2M

24.9 - 25.2 mi

Top 27%
×1story
+13ft-16ft

Overall

7306

Females

1550

F40-44

1550

25.2M→Finish

25.2 - 26.2 mi

Top 33%
×2story building
+22ft-21ft

Overall

8872

Females

2185

F40-44

2185

Passing Analysis

Category:
Athletes Passed
2078*
Passed By
1237
Net Change
+841
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#10463
5K → 10K216*371-155#10463#10618
10K → 15K139269-130#10618#10748
15K → 20K138200-62#10748#10810
20K → Half776-69#10810#10879
Half → 25K18955+134#10879#10745
25K → 30K256101+155#10745#10590
30K → 20M77*85-8#10590#10598
20M → 21M1949+185#10598#10413
21M → 35K1254+121#10413#10292
35K → 23M18013+167#10292#10125
23M → 24M2272+225#10125#9900
24M → 40K159*12+147#9900#9753
40K → 25.2M693+66#9753#9687
25.2M → Finish102*37+65#9687#9622
TOTALS2078*1237+841

* 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