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BOSTON MARATHON 2023

Kathryn Howley

Bib: 11483•F

GA

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 23%
Gender (Female)
#0 / 11423
Top 6%
Division (F18-39)
#0 / 4884
Top 11%
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
7:26/mi
23:06
↑ 97↓ 3451.5%
10K· 6.21 mi
7:15/mi
45:38
↑ 79↓ 1380.4%
15K· 9.32 mi
7:09/mi
1:07:50
↑ 67↓ 78
20K· 12.43 mi
7:07/mi
1:29:57
↑ 106↓ 860.1%
Half· 13.11 mi
6:56/mi
1:34:41
↑ 19↓ 370.5%
25K· 15.53 mi
7:07/mi
1:51:57
↑ 66↓ 880.2%
30K· 18.64 mi
7:05/mi
2:13:56
↑ 181↓ 1480.2%
20M
7:13/mi
2:23:45
↑ 64↓ 500.2%
21M
7:33/mi
2:31:18
↑ 106↓ 241.6%
35K· 21.75 mi
7:00/mi
2:36:32
↑ 17↓ 861.7%
23M
7:17/mi
2:45:39
↑ 23↓ 630.6%
24M
7:10/mi
2:52:49
↓ 821.3%
40K· 24.85 mi
7:19/mi
2:59:04
↓ 200.3%
25.2M
7:53/mi
3:01:47
↑ 13↓ 160.2%
Finish· 26.22 mi
7:12/mi
3:09:07
↑ 22↓ 21

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:34:41
Pace7:13 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:34:26
Pace7:12 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:49:4823:067:2623:06
7:26
-
10K
6.21 mi11:12:2045:387:2122:32
7:15
-0:11
15K
9.32 mi11:34:321:07:507:1722:12
7:09
-0:06
20K
12.43 mi11:56:391:29:577:1422:07
7:07
-0:02
Half
13.11 mi12:01:231:34:417:134:44
6:56
-0:11
25K
15.53 mi12:18:391:51:577:1217:16
7:07
+0:11
30K
18.64 mi12:40:382:13:567:1121:59
7:05
-0:02
20M
20.00 mi12:50:272:23:457:119:49
7:13
+0:08
21M
21.00 mi12:58:002:31:187:127:33
7:33
+0:20
35K
21.75 mi13:03:142:36:327:125:14
7:00
-0:33
23M
23.00 mi13:12:212:45:397:129:07
7:17
+0:17
24M
24.00 mi13:19:312:52:497:127:10
7:10
-0:07
40K
24.85 mi13:25:462:59:047:126:15
7:19
+0:09
25.2M
25.20 mi13:28:293:01:477:132:43
7:53
+0:34
Finish
26.22 mi13:35:493:09:077:137:20
7:12
-0:41

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

6:56 /mi

Average Pace

7:13 /mi

Slowest Pace

7:53 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:06:24

99% of race

Time at Steady Pace

2:43

1% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:13 /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 mi10:49:4823:067:2623:06
7:26
#9108
10K
6.21 mi11:12:2045:387:2122:32
7:15
#8756
15K
9.32 mi11:34:321:07:507:1722:12
7:09
#8291
20K
12.43 mi11:56:391:29:577:1422:07
7:07
#7817
Half
13.11 mi12:01:231:34:417:134:44
6:56
#7715
25K
15.53 mi12:18:391:51:577:1217:16
7:07
#7406
30K
18.64 mi12:40:382:13:567:1121:59
7:05
#6907
20M
20.00 mi12:50:272:23:457:119:49
7:13
#6758
21M
21.00 mi12:58:002:31:187:127:33
7:33
#6619
35K
21.75 mi13:03:142:36:327:125:14
7:00
#6534
23M
23.00 mi13:12:212:45:397:129:07
7:17
#6421
24M
24.00 mi13:19:312:52:497:127:10
7:10
#6326
40K
24.85 mi13:25:462:59:047:126:15
7:19
#6259
25.2M
25.20 mi13:28:293:01:477:132:43
7:53
#6230
Finish
26.22 mi13:35:493:09:077:137:20
7:12
#6216
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi9108143014307452(Top 28%)876(Top 8%)876(Top 18%)
10K6.21 mi3.10 mi8756+3521305+1251305+1258515(Top 32%)1230(Top 11%)1230(Top 25%)
15K9.32 mi3.11 mi8291+4651139+1661139+1667452(Top 28%)876(Top 8%)876(Top 18%)
20K12.43 mi3.11 mi7817+474986+153986+1536657(Top 25%)698(Top 6%)698(Top 14%)
Half13.11 mi0.68 mi7715+102953+33953+336272(Top 24%)572(Top 5%)572(Top 12%)
25K15.53 mi2.42 mi7406+309863+90863+906254(Top 23%)626(Top 5%)626(Top 13%)
30K18.64 mi3.11 mi6907+499758+105758+1054807(Top 18%)375(Top 3%)375(Top 8%)
20M20.00 mi1.36 mi6758+149730+28730+285266(Top 20%)520(Top 5%)520(Top 11%)
21M21.00 mi1.00 mi6619+139712+18712+184854(Top 18%)481(Top 4%)481(Top 10%)
35K21.75 mi0.75 mi6534+85696+16696+165360(Top 20%)586(Top 5%)586(Top 12%)
23M23.00 mi1.25 mi6421+113677+19677+195240(Top 20%)599(Top 5%)599(Top 12%)
24M24.00 mi1.00 mi6326+95664+13664+135583(Top 21%)742(Top 6%)742(Top 15%)
40K24.85 mi0.85 mi6259+67659+5659+55546(Top 21%)822(Top 7%)822(Top 17%)
25.2M25.20 mi0.35 mi6230+29658+1658+15862(Top 22%)993(Top 9%)993(Top 20%)
Finish26.22 mi1.02 mi6216+14666-8666-86417(Top 24%)1195(Top 10%)1195(Top 24%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 28%
×21story building
+97ft-345ft

Overall

7452

Females

876

F18-39

876

5K→10K

3.1 - 6.2 mi

Top 32%
×5story building
+79ft-138ft

Overall

8515

Females

1230

F18-39

1230

10K→15K

6.2 - 9.3 mi

Top 28%
×3story building
+67ft-78ft

Overall

7452

Females

876

F18-39

876

15K→20K

9.3 - 12.4 mi

Top 25%
×5story building
+106ft-86ft

Overall

6657

Females

698

F18-39

698

20K→Half

12.4 - 13.1 mi

Top 24%
×2story building
+19ft-37ft

Overall

6272

Females

572

F18-39

572

Half→25K

13.1 - 15.5 mi

Top 23%
×4story building
+66ft-88ft

Overall

6254

Females

626

F18-39

626

25K→30K

15.5 - 18.6 mi

Top 18%
×9story building
+181ft-148ft

Overall

4807

Females

375

F18-39

375

30K→20M

18.6 - 20.0 mi

Top 20%
×5story building
+64ft-50ft

Overall

5266

Females

520

F18-39

520

20M→21M

20.0 - 21.0 mi

Top 18%
×8story building
+106ft-24ft

Overall

4854

Females

481

F18-39

481

21M→35K

21.0 - 21.8 mi

Top 20%
×7story building
+17ft-86ft

Overall

5360

Females

586

F18-39

586

35K→23M

21.8 - 23.0 mi

Top 20%
×5story building
+23ft-63ft

Overall

5240

Females

599

F18-39

599

23M→24M

23.0 - 24.0 mi

Top 21%
×6story building
+12ft-82ft

Overall

5583

Females

742

F18-39

742

24M→40K

24.0 - 24.9 mi

Top 21%
×1story
+6ft-20ft

Overall

5546

Females

822

F18-39

822

40K→25.2M

24.9 - 25.2 mi

Top 22%
×1story
+13ft-16ft

Overall

5862

Females

993

F18-39

993

25.2M→Finish

25.2 - 26.2 mi

Top 24%
×2story building
+22ft-21ft

Overall

6417

Females

1195

F18-39

1195

Passing Analysis

Category:
Athletes Passed
3165
Passed By
273
Net Change
+2892
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#9108
5K → 10K478126+352#9108#8756
10K → 15K47813+465#8756#8291
15K → 20K4762+474#8291#7817
20K → Half1020+102#7817#7715
Half → 25K3145+309#7715#7406
25K → 30K5023+499#7406#6907
30K → 20M1589+149#6907#6758
20M → 21M1445+139#6758#6619
21M → 35K9510+85#6619#6534
35K → 23M13118+113#6534#6421
23M → 24M11015+95#6421#6326
24M → 40K7912+67#6326#6259
40K → 25.2M356+29#6259#6230
25.2M → Finish6349+14#6230#6216
TOTALS3165273+2892
📊

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