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BOSTON MARATHON 2023

Kathryn Zioto

Bib: 14616•F

MA

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 17%
Gender (Female)
#0 / 11423
Top 3%
Division (F18-39)
#0 / 4884
Top 5%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Watch your race unfold from start to finish

Start
0:00:00
Race begins
5K· 3.11 mi
22:25
Rank: #7596
Start → 5K
22:25 | 7:13/mi
10K· 6.21 mi
43:59
Rank: #6975 (+621)
5K → 10K
21:34 | 6:56/mi
15K· 9.32 mi
1:05:23
Rank: #6593 (+382)
10K → 15K
21:24 | 6:53/mi
20K· 12.43 mi
1:26:35
Rank: #6143 (+450)
15K → 20K
21:12 | 6:49/mi
Half· 13.11 mi
1:31:12
Rank: #6099 (+44)
20K → Half
4:37 | 6:46/mi
25K· 15.53 mi
1:47:43
Rank: #5799 (+300)
Half → 25K
16:31 | 6:49/mi
30K· 18.64 mi
2:09:15
Rank: #5438 (+361)
25K → 30K
21:32 | 6:56/mi
20M
2:18:40
Rank: #5252 (+186)
30K → 20M
9:25 | 6:56/mi
21M
2:25:45
Rank: #5027 (+225)
20M → 21M
7:05 | 7:05/mi
35K· 21.75 mi
2:30:42
Rank: #4941 (+86)
21M → 35K
4:57 | 6:37/mi
23M
2:39:27
Rank: #4806 (+135)
35K → 23M
8:45 | 6:59/mi
24M
2:46:04
Rank: #4665 (+141)
23M → 24M
6:37 | 6:37/mi
40K· 24.85 mi
2:51:49
Rank: #4555 (+110)
24M → 40K
5:45 | 6:44/mi
25.2M
2:54:21
Rank: #4524 (+31)
40K → 25.2M
2:32 | 7:21/mi
Finish· 26.22 mi
3:01:04
Rank: #4431 (+93)
25.2M → Finish
6:43 | 6:35/mi

Course Map & Elevation

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Half Splits

1st Half· via Half
Distance13.11 mi
Time1:31:12
Pace6:57 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:29:52
Pace6:51 /mi
📊Negative Split: 1.5% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:51:1222:257:1322:25
7:13
-
10K
6.21 mi11:12:4643:597:0521:34
6:56
-0:17
15K
9.32 mi11:34:101:05:237:0121:24
6:53
-0:03
20K
12.43 mi11:55:221:26:356:5821:12
6:49
-0:04
Half
13.11 mi11:59:591:31:126:574:37
6:46
-0:03
25K
15.53 mi12:16:301:47:436:5616:31
6:49
+0:03
30K
18.64 mi12:38:022:09:156:5621:32
6:56
+0:07
20M
20.00 mi12:47:272:18:406:569:25
6:56
0:00
21M
21.00 mi12:54:322:25:456:567:05
7:05
+0:09
35K
21.75 mi12:59:292:30:426:564:57
6:37
-0:28
23M
23.00 mi13:08:142:39:276:568:45
6:59
+0:22
24M
24.00 mi13:14:512:46:046:556:37
6:37
-0:22
40K
24.85 mi13:20:362:51:496:555:45
6:44
+0:07
25.2M
25.20 mi13:23:082:54:216:552:32
7:21
+0:37
Finish
26.22 mi13:29:513:01:046:556:43
6:35
-0:46

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

6:35 /mi

Average Pace

6:55 /mi

Slowest Pace

7:21 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Bar length shows time spent in each segment. Colors mark your faster to slower segments, relative to your own pace.

Time at Faster Pace

2:58:32

99% of race

Time at Steady Pace

2:32

1% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:54 /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

Enhanced split table showing pace trends through mini sparkline visualizations.

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi10:51:1222:257:1322:25
7:13
#7596
10K
6.21 mi11:12:4643:597:0521:34
6:56
#6975
15K
9.32 mi11:34:101:05:237:0121:24
6:53
#6593
20K
12.43 mi11:55:221:26:356:5821:12
6:49
#6143
Half
13.11 mi11:59:591:31:126:574:37
6:46
#6099
25K
15.53 mi12:16:301:47:436:5616:31
6:49
#5799
30K
18.64 mi12:38:022:09:156:5621:32
6:56
#5438
20M
20.00 mi12:47:272:18:406:569:25
6:56
#5252
21M
21.00 mi12:54:322:25:456:567:05
7:05
#5027
35K
21.75 mi12:59:292:30:426:564:57
6:37
#4941
23M
23.00 mi13:08:142:39:276:568:45
6:59
#4806
24M
24.00 mi13:14:512:46:046:556:37
6:37
#4665
40K
24.85 mi13:20:362:51:496:555:45
6:44
#4555
25.2M
25.20 mi13:23:082:54:216:552:32
7:21
#4524
Finish
26.22 mi13:29:513:01:046:556:43
6:35
#4431
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi75968688685893(Top 22%)506(Top 4%)506(Top 10%)
10K6.21 mi3.10 mi6975+621723+145723+1456440(Top 24%)619(Top 5%)619(Top 13%)
15K9.32 mi3.11 mi6593+382638+85638+855893(Top 22%)506(Top 4%)506(Top 10%)
20K12.43 mi3.11 mi6143+450549+89549+894680(Top 18%)318(Top 3%)318(Top 7%)
Half13.11 mi0.68 mi6099+44537+12537+125070(Top 19%)370(Top 3%)370(Top 8%)
25K15.53 mi2.42 mi5799+300473+64473+644280(Top 16%)278(Top 2%)278(Top 6%)
30K18.64 mi3.11 mi5438+361414+59414+593891(Top 15%)247(Top 2%)247(Top 5%)
20M20.00 mi1.36 mi5252+186397+17397+173627(Top 14%)242(Top 2%)242(Top 5%)
21M21.00 mi1.00 mi5027+225371+26371+262583(Top 10%)149(Top 1%)149(Top 3%)
35K21.75 mi0.75 mi4941+86359+12359+123160(Top 12%)207(Top 2%)207(Top 4%)
23M23.00 mi1.25 mi4806+135341+18341+183758(Top 14%)287(Top 3%)287(Top 6%)
24M24.00 mi1.00 mi4665+141322+19322+192692(Top 10%)188(Top 2%)188(Top 4%)
40K24.85 mi0.85 mi4555+110312+10312+102506(Top 9%)184(Top 2%)184(Top 4%)
25.2M25.20 mi0.35 mi4524+31309+3309+33260(Top 12%)290(Top 3%)290(Top 6%)
Finish26.22 mi1.02 mi4431+93300+9300+92975(Top 11%)281(Top 2%)281(Top 6%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 22%
×21stories
+97ft-345ft

Overall

5893

Females

506

F18-39

506

5K→10K

3.1 - 6.2 mi

Top 24%
×5stories
+79ft-138ft

Overall

6440

Females

619

F18-39

619

10K→15K

6.2 - 9.3 mi

Top 22%
×3stories
+67ft-78ft

Overall

5893

Females

506

F18-39

506

15K→20K

9.3 - 12.4 mi

Top 18%
×5stories
+106ft-86ft

Overall

4680

Females

318

F18-39

318

20K→Half

12.4 - 13.1 mi

Top 19%
×2stories
+19ft-37ft

Overall

5070

Females

370

F18-39

370

Half→25K

13.1 - 15.5 mi

Top 16%
×4stories
+66ft-88ft

Overall

4280

Females

278

F18-39

278

25K→30K

15.5 - 18.6 mi

Top 15%
×9stories
+181ft-148ft

Overall

3891

Females

247

F18-39

247

30K→20M

18.6 - 20.0 mi

Top 14%
×5stories
+64ft-50ft

Overall

3627

Females

242

F18-39

242

20M→21M

20.0 - 21.0 mi

Top 10%
×8stories
+106ft-24ft

Overall

2583

Females

149

F18-39

149

21M→35K

21.0 - 21.8 mi

Top 12%
×7stories
+17ft-86ft

Overall

3160

Females

207

F18-39

207

35K→23M

21.8 - 23.0 mi

Top 14%
×5stories
+23ft-63ft

Overall

3758

Females

287

F18-39

287

23M→24M

23.0 - 24.0 mi

Top 10%
×6stories
+12ft-82ft

Overall

2692

Females

188

F18-39

188

24M→40K

24.0 - 24.9 mi

Top 9%
×1story
+6ft-20ft

Overall

2506

Females

184

F18-39

184

40K→25.2M

24.9 - 25.2 mi

Top 12%
×1story
+13ft-16ft

Overall

3260

Females

290

F18-39

290

25.2M→Finish

25.2 - 26.2 mi

Top 11%
×2stories
+22ft-21ft

Overall

2975

Females

281

F18-39

281

Passing Analysis

Category:
Athletes Passed
3261
Passed By
96
Net Change
+3165
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#7596
5K → 10K65130+621#7596#6975
10K → 15K3897+382#6975#6593
15K → 20K4500+450#6593#6143
20K → Half462+44#6143#6099
Half → 25K3044+300#6099#5799
25K → 30K37110+361#5799#5438
30K → 20M1893+186#5438#5252
20M → 21M2250+225#5252#5027
21M → 35K871+86#5027#4941
35K → 23M15217+135#4941#4806
23M → 24M1443+141#4806#4665
24M → 40K1155+110#4665#4555
40K → 25.2M365+31#4555#4524
25.2M → Finish1029+93#4524#4431
TOTALS326196+3165
📊

Passing Visuals

Category:

📈Position Graph

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🎨Heatmap Timeline

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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