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BOSTON MARATHON 2023

Katherine Kokal

PA

Bib: 5390 F

0:00
0:00
/ mi
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Top 40%
Division (F18-39)
#0 / 4884
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
469 ft elev
5K· 3.11 mi
7:52/mi
24:27
↑ 97↓ 3451.5%
220 ft elev
10K· 6.21 mi
8:02/mi
49:24
↑ 79↓ 1380.4%
157 ft elev
15K· 9.32 mi
8:00/mi
1:14:16
↑ 67↓ 78
146 ft elev
20K· 12.43 mi
8:09/mi
1:39:35
↑ 106↓ 860.1%
165 ft elev
Half· 13.11 mi
8:08/mi
1:45:08
↑ 19↓ 370.5%
148 ft elev
25K· 15.53 mi
8:22/mi
2:05:26
↑ 66↓ 880.2%
127 ft elev
30K· 18.64 mi
8:37/mi
2:32:13
↑ 181↓ 1480.2%
138 ft elev
20M
8:37/mi
2:43:56
↑ 64↓ 500.2%
148 ft elev
21M
9:00/mi
2:52:56
↑ 106↓ 241.6%
227 ft elev
35K· 21.75 mi
8:27/mi
2:59:15
↑ 17↓ 861.7%
156 ft elev
23M
9:02/mi
3:10:33
↑ 23↓ 630.6%
116 ft elev
24M
8:32/mi
3:19:05
↓ 821.3%
34 ft elev
40K· 24.85 mi
8:36/mi
3:26:26
↓ 200.3%
20 ft elev
25.2M
9:11/mi
3:29:36
↑ 13↓ 160.2%
18 ft elev
Finish· 26.22 mi
8:17/mi
3:38:02
↑ 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 HalfFaster
Distance13.11 mi
Time1:45:08
Pace8:01 /mi
2nd Half
Distance13.11 mi
Time1:52:54
Pace8:37 /mi
📊Positive Split: 7.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:51:3124:277:5224:27
7:52
-
10K
6.21 mi11:16:2849:247:5724:57
8:02
+0:10
15K
9.32 mi11:41:201:14:167:5824:52
8:00
-0:02
20K
12.43 mi12:06:391:39:358:0125:19
8:09
+0:09
Half
13.11 mi12:12:121:45:088:015:33
8:08
-0:01
25K
15.53 mi12:32:302:05:268:0420:18
8:22
+0:14
30K
18.64 mi12:59:172:32:138:1026:47
8:37
+0:15
20M
20.00 mi13:11:002:43:568:1211:43
8:37
0:00
21M
21.00 mi13:20:002:52:568:149:00
9:00
+0:23
35K
21.75 mi13:26:192:59:158:156:19
8:27
-0:33
23M
23.00 mi13:37:373:10:338:1711:18
9:02
+0:35
24M
24.00 mi13:46:093:19:058:188:32
8:32
-0:30
40K
24.85 mi13:53:303:26:268:187:21
8:36
+0:04
25.2M
25.20 mi13:56:403:29:368:193:10
9:11
+0:35
Finish
26.22 mi14:05:063:38:028:198:26
8:17
-0:54

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

7:52 /mi

Average Pace

8:19 /mi

Slowest Pace

9:11 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:14:34

89% of race

Time at Steady Pace

23:28

11% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:19 /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 mi10:51:3124:277:5224:27
7:52
#13020
10K
6.21 mi11:16:2849:247:5724:57
8:02
#13992
15K
9.32 mi11:41:201:14:167:5824:52
8:00
#14128
20K
12.43 mi12:06:391:39:358:0125:19
8:09
#14202
Half
13.11 mi12:12:121:45:088:015:33
8:08
#14267
25K
15.53 mi12:32:302:05:268:0420:18
8:22
#14472
30K
18.64 mi12:59:172:32:138:1026:47
8:37
#14562
20M
20.00 mi13:11:002:43:568:1211:43
8:37
#14533
21M
21.00 mi13:20:002:52:568:149:00
9:00
#14453
35K
21.75 mi13:26:192:59:158:156:19
8:27
#14475
23M
23.00 mi13:37:373:10:338:1711:18
9:02
#14565
24M
24.00 mi13:46:093:19:058:188:32
8:32
#14545
40K
24.85 mi13:53:303:26:268:187:21
8:36
#14509
25.2M
25.20 mi13:56:403:29:368:193:10
9:11
#14480
Finish
26.22 mi14:05:063:38:028:198:26
8:17
#14438
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi13020345334531443243404340
10K6.21 mi3.10 mi13992-9724038-5854038-5851502646954695
15K9.32 mi3.11 mi14128-1364140-1024140-1021443243404340
20K12.43 mi3.11 mi14202-744206-664206-661459444584458
Half13.11 mi0.68 mi14267-654241-354241-351536248964896
25K15.53 mi2.42 mi14472-2054385-1444385-1441541850905090
30K18.64 mi3.11 mi14562-904483-984483-981504049514951
20M20.00 mi1.36 mi14533+294489-64489-61442746614661
21M21.00 mi1.00 mi14453+804468+214468+211343841834183
35K21.75 mi0.75 mi14475-224493-254493-251499150965096
23M23.00 mi1.25 mi14565-904566-734566-731618058365836
24M24.00 mi1.00 mi14545+204579-134579-131469350615061
40K24.85 mi0.85 mi14509+364582-34582-31395847214721
25.2M25.20 mi0.35 mi14480+294575+74575+71360745444544
Finish26.22 mi1.02 mi14438+424565+104565+101396947204720

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 54%
×21story building
+97ft-345ft

Overall

14432

Females

4340

F18-39

4340

5K→10K

3.1 - 6.2 mi

Top 56%
×5story building
+79ft-138ft

Overall

15026

Females

4695

F18-39

4695

10K→15K

6.2 - 9.3 mi

Top 54%
×3story building
+67ft-78ft

Overall

14432

Females

4340

F18-39

4340

15K→20K

9.3 - 12.4 mi

Top 55%
×5story building
+106ft-86ft

Overall

14594

Females

4458

F18-39

4458

20K→Half

12.4 - 13.1 mi

Top 58%
×2story building
+19ft-37ft

Overall

15362

Females

4896

F18-39

4896

Half→25K

13.1 - 15.5 mi

Top 58%
×4story building
+66ft-88ft

Overall

15418

Females

5090

F18-39

5090

25K→30K

15.5 - 18.6 mi

Top 56%
×9story building
+181ft-148ft

Overall

15040

Females

4951

F18-39

4951

30K→20M

18.6 - 20.0 mi

Top 54%
×5story building
+64ft-50ft

Overall

14427

Females

4661

F18-39

4661

20M→21M

20.0 - 21.0 mi

Top 50%
×8story building
+106ft-24ft

Overall

13438

Females

4183

F18-39

4183

21M→35K

21.0 - 21.8 mi

Top 56%
×7story building
+17ft-86ft

Overall

14991

Females

5096

F18-39

5096

35K→23M

21.8 - 23.0 mi

Top 61%
×5story building
+23ft-63ft

Overall

16180

Females

5836

F18-39

5836

23M→24M

23.0 - 24.0 mi

Top 55%
×6story building
+12ft-82ft

Overall

14693

Females

5061

F18-39

5061

24M→40K

24.0 - 24.9 mi

Top 52%
×1story
+6ft-20ft

Overall

13958

Females

4721

F18-39

4721

40K→25.2M

24.9 - 25.2 mi

Top 51%
×1story
+13ft-16ft

Overall

13607

Females

4544

F18-39

4544

25.2M→Finish

25.2 - 26.2 mi

Top 52%
×2story building
+22ft-21ft

Overall

13969

Females

4720

F18-39

4720

Passing Analysis

Category:
Athletes Passed
1173
Passed By
2591
Net Change
-1418
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#13020
5K → 10K501022-972#13020#13992
10K → 15K142278-136#13992#14128
15K → 20K145219-74#14128#14202
20K → Half1378-65#14202#14267
Half → 25K82287-205#14267#14472
25K → 30K141231-90#14472#14562
30K → 20M10576+29#14562#14533
20M → 21M12343+80#14533#14453
21M → 35K3557-22#14453#14475
35K → 23M55145-90#14475#14565
23M → 24M8161+20#14565#14545
24M → 40K8145+36#14545#14509
40K → 25.2M378+29#14509#14480
25.2M → Finish8341+42#14480#14438
TOTALS11732591-1418

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