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BOSTON MARATHON 2023

Cathy Kendall

Bib: 19150•F

UT

0:00
0:00
/ mi
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Top 46%
Division (F18-39)
#0 / 4884
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
8:26/mi
26:11
↑ 97↓ 3451.5%
10K· 6.21 mi
8:11/mi
51:35
↑ 79↓ 1380.4%
15K· 9.32 mi
8:03/mi
1:16:36
↑ 67↓ 78
20K· 12.43 mi
8:12/mi
1:42:05
↑ 106↓ 860.1%
Half· 13.11 mi
7:55/mi
1:47:29
↑ 19↓ 370.5%
25K· 15.53 mi
8:17/mi
2:07:33
↑ 66↓ 880.2%
30K· 18.64 mi
8:30/mi
2:33:58
↑ 181↓ 1480.2%
20M
8:37/mi
2:45:40
↑ 64↓ 500.2%
21M
9:16/mi
2:54:56
↑ 106↓ 241.6%
35K· 21.75 mi
8:29/mi
3:01:17
↑ 17↓ 861.7%
23M
9:31/mi
3:13:12
↑ 23↓ 630.6%
24M
8:34/mi
3:21:46
↓ 821.3%
40K· 24.85 mi
9:14/mi
3:29:40
↓ 200.3%
25.2M
10:21/mi
3:33:14
↑ 13↓ 160.2%
Finish· 26.22 mi
9:11/mi
3:42:35
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:47:29
Pace8:12 /mi
2nd Half
Distance13.11 mi
Time1:55:06
Pace8:47 /mi
📊Positive Split: 7.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:18:4326:118:2626:11
8:26
-
10K
6.21 mi11:44:0751:358:1825:24
8:11
-0:15
15K
9.32 mi12:09:081:16:368:1325:01
8:03
-0:08
20K
12.43 mi12:34:371:42:058:1325:29
8:12
+0:09
Half
13.11 mi12:40:011:47:298:125:24
7:55
-0:17
25K
15.53 mi13:00:052:07:338:1320:04
8:17
+0:22
30K
18.64 mi13:26:302:33:588:1626:25
8:30
+0:13
20M
20.00 mi13:38:122:45:408:1711:42
8:37
+0:07
21M
21.00 mi13:47:282:54:568:209:16
9:16
+0:39
35K
21.75 mi13:53:493:01:178:206:21
8:29
-0:47
23M
23.00 mi14:05:443:13:128:2411:55
9:31
+1:02
24M
24.00 mi14:14:183:21:468:248:34
8:34
-0:57
40K
24.85 mi14:22:123:29:408:267:54
9:14
+0:40
25.2M
25.20 mi14:25:463:33:148:283:34
10:21
+1:07
Finish
26.22 mi14:35:073:42:358:309:21
9:11
-1:10

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

7:55 /mi

Average Pace

8:30 /mi

Slowest Pace

10:21 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

30:25

14% of race

Time at Steady Pace

2:30:10

67% of race

Time at Slower Pace

42:00

19% of race

Average Pace: 8:29 /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 mi11:18:4326:118:2626:11
8:26
#17077
10K
6.21 mi11:44:0751:358:1825:24
8:11
#16519
15K
9.32 mi12:09:081:16:368:1325:01
8:03
#15963
20K
12.43 mi12:34:371:42:058:1325:29
8:12
#15679
Half
13.11 mi12:40:011:47:298:125:24
7:55
#15585
25K
15.53 mi13:00:052:07:338:1320:04
8:17
#15424
30K
18.64 mi13:26:302:33:588:1626:25
8:30
#15189
20M
20.00 mi13:38:122:45:408:1711:42
8:37
#15122
21M
21.00 mi13:47:282:54:568:209:16
9:16
#15087
35K
21.75 mi13:53:493:01:178:206:21
8:29
#15087
23M
23.00 mi14:05:443:13:128:2411:55
9:31
#15293
24M
24.00 mi14:14:183:21:468:248:34
8:34
#15258
40K
24.85 mi14:22:123:29:408:267:54
9:14
#15372
25.2M
25.20 mi14:25:463:33:148:283:34
10:21
#15428
Finish
26.22 mi14:35:073:42:358:309:21
9:11
#15593
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi170775980598014834(Top 56%)4591(Top 40%)4591(Top 94%)
10K6.21 mi3.10 mi16519+5585589+3915589+39116088(Top 60%)5330(Top 47%)5330(Top 109%)
15K9.32 mi3.11 mi15963+5565257+3325257+33214834(Top 56%)4591(Top 40%)4591(Top 94%)
20K12.43 mi3.11 mi15679+2845103+1545103+15414986(Top 56%)4710(Top 41%)4710(Top 96%)
Half13.11 mi0.68 mi15585+945052+515052+5113788(Top 52%)3975(Top 35%)3975(Top 81%)
25K15.53 mi2.42 mi15424+1614979+734979+7314808(Top 56%)4712(Top 41%)4712(Top 96%)
30K18.64 mi3.11 mi15189+2354879+1004879+10014349(Top 54%)4539(Top 40%)4539(Top 93%)
20M20.00 mi1.36 mi15122+674851+284851+2814353(Top 54%)4632(Top 41%)4632(Top 95%)
21M21.00 mi1.00 mi15087+354854-34854-314834(Top 56%)4953(Top 43%)4953(Top 101%)
35K21.75 mi0.75 mi150874871-174871-1715272(Top 57%)5276(Top 46%)5276(Top 108%)
23M23.00 mi1.25 mi15293-2065025-1545025-15418396(Top 69%)7068(Top 62%)7068(Top 145%)
24M24.00 mi1.00 mi15258+355015+105015+1014899(Top 56%)5176(Top 45%)5176(Top 106%)
40K24.85 mi0.85 mi15372-1145108-935108-9317281(Top 65%)6553(Top 57%)6553(Top 134%)
25.2M25.20 mi0.35 mi15428-565151-435151-4318614(Top 70%)7276(Top 64%)7276(Top 149%)
Finish26.22 mi1.02 mi15593-1655260-1095260-10918810(Top 71%)7332(Top 64%)7332(Top 150%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 56%
×21story building
+97ft-345ft

Overall

14834

Females

4591

F18-39

4591

5K→10K

3.1 - 6.2 mi

Top 60%
×5story building
+79ft-138ft

Overall

16088

Females

5330

F18-39

5330

10K→15K

6.2 - 9.3 mi

Top 56%
×3story building
+67ft-78ft

Overall

14834

Females

4591

F18-39

4591

15K→20K

9.3 - 12.4 mi

Top 56%
×5story building
+106ft-86ft

Overall

14986

Females

4710

F18-39

4710

20K→Half

12.4 - 13.1 mi

Top 52%
×2story building
+19ft-37ft

Overall

13788

Females

3975

F18-39

3975

Half→25K

13.1 - 15.5 mi

Top 56%
×4story building
+66ft-88ft

Overall

14808

Females

4712

F18-39

4712

25K→30K

15.5 - 18.6 mi

Top 54%
×9story building
+181ft-148ft

Overall

14349

Females

4539

F18-39

4539

30K→20M

18.6 - 20.0 mi

Top 54%
×5story building
+64ft-50ft

Overall

14353

Females

4632

F18-39

4632

20M→21M

20.0 - 21.0 mi

Top 56%
×8story building
+106ft-24ft

Overall

14834

Females

4953

F18-39

4953

21M→35K

21.0 - 21.8 mi

Top 57%
×7story building
+17ft-86ft

Overall

15272

Females

5276

F18-39

5276

35K→23M

21.8 - 23.0 mi

Top 69%
×5story building
+23ft-63ft

Overall

18396

Females

7068

F18-39

7068

23M→24M

23.0 - 24.0 mi

Top 56%
×6story building
+12ft-82ft

Overall

14899

Females

5176

F18-39

5176

24M→40K

24.0 - 24.9 mi

Top 65%
×1story
+6ft-20ft

Overall

17281

Females

6553

F18-39

6553

40K→25.2M

24.9 - 25.2 mi

Top 70%
×1story
+13ft-16ft

Overall

18614

Females

7276

F18-39

7276

25.2M→Finish

25.2 - 26.2 mi

Top 71%
×2story building
+22ft-21ft

Overall

18810

Females

7332

F18-39

7332

Passing Analysis

Category:
Athletes Passed
2687
Passed By
1203
Net Change
+1484
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#17077
5K → 10K668110+558#17077#16519
10K → 15K59842+556#16519#15963
15K → 20K34460+284#15963#15679
20K → Half951+94#15679#15585
Half → 25K21655+161#15585#15424
25K → 30K30166+235#15424#15189
30K → 20M11851+67#15189#15122
20M → 21M10469+35#15122#15087
21M → 35K42420#15087#15087
35K → 23M37243-206#15087#15293
23M → 24M9055+35#15293#15258
24M → 40K31145-114#15258#15372
40K → 25.2M2177-56#15372#15428
25.2M → Finish22187-165#15428#15593
TOTALS26871203+1484
📊

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