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BOSTON MARATHON 2023

Katherine Rizzo

Bib: 19972•F

ME

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 49%
Gender (Female)
#0 / 11423
Top 32%
Masters (Masters Women)
#0 / 6539
Top 19%
Division (F50-54)
#0 / 1207
Top 11%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
25:47
Rank: #16142
Start → 5K
25:47 | 8:18/mi
10K· 6.21 mi
50:18
Rank: #15081 (+1061)
5K → 10K
24:31 | 7:53/mi
15K· 9.32 mi
1:14:36
Rank: #14387 (+694)
10K → 15K
24:18 | 7:49/mi
20K· 12.43 mi
1:40:02
Rank: #14478 (-91)
15K → 20K
25:26 | 8:11/mi
Half· 13.11 mi
1:45:24
Rank: #14420 (+58)
20K → Half
5:22 | 7:52/mi
25K· 15.53 mi
2:04:45
Rank: #14106 (+314)
Half → 25K
19:21 | 7:59/mi
30K· 18.64 mi
2:30:11
Rank: #13749 (+357)
25K → 30K
25:26 | 8:11/mi
20M
2:41:28
Rank: #13621 (+128)
30K → 20M
11:17 | 8:18/mi
21M
2:50:34
Rank: #13625 (-4)
20M → 21M
9:06 | 9:06/mi
35K· 21.75 mi
2:56:23
Rank: #13492 (+133)
21M → 35K
5:49 | 7:46/mi
23M
3:06:37
Rank: #13306 (+186)
35K → 23M
10:14 | 8:10/mi
24M
3:14:31
Rank: #13157 (+149)
23M → 24M
7:54 | 7:54/mi
40K· 24.85 mi
3:21:26
Rank: #13042 (+115)
24M → 40K
6:55 | 8:05/mi
25.2M
3:24:27
Rank: #13009 (+33)
40K → 25.2M
3:01 | 8:45/mi
Finish· 26.22 mi
3:32:33
Rank: #12946 (+63)
25.2M → Finish
8:06 | 7:57/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:45:24
Pace8:02 /mi
2nd Half
Distance13.11 mi
Time1:47:09
Pace8:10 /mi
📊Positive Split: 1.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:17:2825:478:1825:47
8:18
-
10K
6.21 mi11:41:5950:188:0624:31
7:53
-0:25
15K
9.32 mi12:06:171:14:368:0024:18
7:49
-0:04
20K
12.43 mi12:31:431:40:028:0325:26
8:11
+0:22
Half
13.11 mi12:37:051:45:248:025:22
7:52
-0:19
25K
15.53 mi12:56:262:04:458:0219:21
7:59
+0:07
30K
18.64 mi13:21:522:30:118:0325:26
8:11
+0:12
20M
20.00 mi13:33:092:41:288:0411:17
8:18
+0:07
21M
21.00 mi13:42:152:50:348:079:06
9:06
+0:48
35K
21.75 mi13:48:042:56:238:075:49
7:46
-1:20
23M
23.00 mi13:58:183:06:378:0710:14
8:10
+0:24
24M
24.00 mi14:06:123:14:318:067:54
7:54
-0:16
40K
24.85 mi14:13:073:21:268:066:55
8:05
+0:11
25.2M
25.20 mi14:16:083:24:278:073:01
8:45
+0:40
Finish
26.22 mi14:24:143:32:338:078:06
7:57
-0:48

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

7:46 /mi

Average Pace

8:07 /mi

Slowest Pace

9:06 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:20:26

94% of race

Time at Steady Pace

12:07

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:06 /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 mi11:17:2825:478:1825:47
8:18
#16142
10K
6.21 mi11:41:5950:188:0624:31
7:53
#15081
15K
9.32 mi12:06:171:14:368:0024:18
7:49
#14387
20K
12.43 mi12:31:431:40:028:0325:26
8:11
#14478
Half
13.11 mi12:37:051:45:248:025:22
7:52
#14420
25K
15.53 mi12:56:262:04:458:0219:21
7:59
#14106
30K
18.64 mi13:21:522:30:118:0325:26
8:11
#13749
20M
20.00 mi13:33:092:41:288:0411:17
8:18
#13621
21M
21.00 mi13:42:152:50:348:079:06
9:06
#13625
35K
21.75 mi13:48:042:56:238:075:49
7:46
#13492
23M
23.00 mi13:58:183:06:378:0710:14
8:10
#13306
24M
24.00 mi14:06:123:14:318:067:54
7:54
#13157
40K
24.85 mi14:13:073:21:268:066:55
8:05
#13042
25.2M
25.20 mi14:16:083:24:278:073:01
8:45
#13009
Finish
26.22 mi14:24:143:32:338:078:06
7:57
#12946
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi161425366536612918(Top 49%)3425(Top 30%)3425(Top 284%)
10K6.21 mi3.10 mi15081+10614696+6704696+67013917(Top 52%)3993(Top 35%)3993(Top 331%)
15K9.32 mi3.11 mi14387+6944289+4074289+40712918(Top 49%)3425(Top 30%)3425(Top 284%)
20K12.43 mi3.11 mi14478-914357-684357-6814885(Top 56%)4634(Top 41%)4634(Top 384%)
Half13.11 mi0.68 mi14420+584325+324325+3213366(Top 50%)3715(Top 33%)3715(Top 308%)
25K15.53 mi2.42 mi14106+3144176+1494176+14912605(Top 47%)3422(Top 30%)3422(Top 284%)
30K18.64 mi3.11 mi13749+3573991+1853991+18512269(Top 46%)3344(Top 29%)3344(Top 277%)
20M20.00 mi1.36 mi13621+1283931+603931+6012410(Top 47%)3528(Top 31%)3528(Top 292%)
21M21.00 mi1.00 mi13625-43947-163947-1613995(Top 53%)4478(Top 39%)4478(Top 371%)
35K21.75 mi0.75 mi13492+1333880+673880+6710554(Top 40%)2654(Top 23%)2654(Top 220%)
23M23.00 mi1.25 mi13306+1863803+773803+7711033(Top 41%)3043(Top 27%)3043(Top 252%)
24M24.00 mi1.00 mi13157+1493743+603743+6010574(Top 40%)2881(Top 25%)2881(Top 239%)
40K24.85 mi0.85 mi13042+1153699+443699+4410689(Top 40%)2993(Top 26%)2993(Top 248%)
25.2M25.20 mi0.35 mi13009+333689+103689+1011109(Top 42%)3267(Top 29%)3267(Top 271%)
Finish26.22 mi1.02 mi12946+633672+173672+1711762(Top 44%)3582(Top 31%)3582(Top 297%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 49%
×21stories
+97ft-345ft

Overall

12918

Females

3425

F50-54

3425

5K→10K

3.1 - 6.2 mi

Top 52%
×5stories
+79ft-138ft

Overall

13917

Females

3993

F50-54

3993

10K→15K

6.2 - 9.3 mi

Top 49%
×3stories
+67ft-78ft

Overall

12918

Females

3425

F50-54

3425

15K→20K

9.3 - 12.4 mi

Top 56%
×5stories
+106ft-86ft

Overall

14885

Females

4634

F50-54

4634

20K→Half

12.4 - 13.1 mi

Top 50%
×2stories
+19ft-37ft

Overall

13366

Females

3715

F50-54

3715

Half→25K

13.1 - 15.5 mi

Top 47%
×4stories
+66ft-88ft

Overall

12605

Females

3422

F50-54

3422

25K→30K

15.5 - 18.6 mi

Top 46%
×9stories
+181ft-148ft

Overall

12269

Females

3344

F50-54

3344

30K→20M

18.6 - 20.0 mi

Top 47%
×5stories
+64ft-50ft

Overall

12410

Females

3528

F50-54

3528

20M→21M

20.0 - 21.0 mi

Top 53%
×8stories
+106ft-24ft

Overall

13995

Females

4478

F50-54

4478

21M→35K

21.0 - 21.8 mi

Top 40%
×7stories
+17ft-86ft

Overall

10554

Females

2654

F50-54

2654

35K→23M

21.8 - 23.0 mi

Top 41%
×5stories
+23ft-63ft

Overall

11033

Females

3043

F50-54

3043

23M→24M

23.0 - 24.0 mi

Top 40%
×6stories
+12ft-82ft

Overall

10574

Females

2881

F50-54

2881

24M→40K

24.0 - 24.9 mi

Top 40%
×1story
+6ft-20ft

Overall

10689

Females

2993

F50-54

2993

40K→25.2M

24.9 - 25.2 mi

Top 42%
×1story
+13ft-16ft

Overall

11109

Females

3267

F50-54

3267

25.2M→Finish

25.2 - 26.2 mi

Top 44%
×2stories
+22ft-21ft

Overall

11762

Females

3582

F50-54

3582

Passing Analysis

Category:
Athletes Passed
3792
Passed By
596
Net Change
+3196
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#16142
5K → 10K111150+1061#16142#15081
10K → 15K70915+694#15081#14387
15K → 20K155246-91#14387#14478
20K → Half7315+58#14478#14420
Half → 25K33420+314#14420#14106
25K → 30K39437+357#14106#13749
30K → 20M16638+128#13749#13621
20M → 21M9094-4#13621#13625
21M → 35K1407+133#13625#13492
35K → 23M20115+186#13492#13306
23M → 24M16718+149#13306#13157
24M → 40K1249+115#13157#13042
40K → 25.2M418+33#13042#13009
25.2M → Finish8724+63#13009#12946
TOTALS3792596+3196
📊

Passing Visuals

Category:
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🔥Passing Intensity

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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