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BOSTON MARATHON 2023

Cassie Whittington

Bib: 19288•F

OH

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Top 41%
Masters (Masters Women)
#0 / 6539
Top 29%
Division (F40-44)
#0 / 1878
Top 50%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
26:14
Rank: #17172
Start → 5K
26:14 | 8:27/mi
10K· 6.21 mi
52:13
Rank: #17233 (-61)
5K → 10K
25:59 | 8:22/mi
15K· 9.32 mi
1:17:32
Rank: #16643 (+590)
10K → 15K
25:19 | 8:09/mi
20K· 12.43 mi
1:43:12
Rank: #16311 (+332)
15K → 20K
25:40 | 8:16/mi
Half· 13.11 mi
1:48:42
Rank: #16230 (+81)
20K → Half
5:30 | 8:04/mi
25K· 15.53 mi
2:08:47
Rank: #15966 (+264)
Half → 25K
20:05 | 8:17/mi
30K· 18.64 mi
2:35:25
Rank: #15737 (+229)
25K → 30K
26:38 | 8:34/mi
20M
2:47:01
Rank: #15568 (+169)
30K → 20M
11:36 | 8:32/mi
21M
2:56:10
Rank: #15447 (+121)
20M → 21M
9:09 | 9:09/mi
35K· 21.75 mi
3:02:23
Rank: #15394 (+53)
21M → 35K
6:13 | 8:19/mi
23M
3:13:14
Rank: #15302 (+92)
35K → 23M
10:51 | 8:40/mi
24M
3:21:36
Rank: #15207 (+95)
23M → 24M
8:22 | 8:22/mi
40K· 24.85 mi
3:28:37
Rank: #15068 (+139)
24M → 40K
7:01 | 8:12/mi
25.2M
3:31:22
Rank: #14918 (+150)
40K → 25.2M
2:45 | 7:58/mi
Finish· 26.22 mi
3:39:00
Rank: #14688 (+230)
25.2M → Finish
7:38 | 7:29/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:48:42
Pace8:17 /mi
2nd Half
Distance13.11 mi
Time1:50:18
Pace8:25 /mi
📊Positive Split: 1.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:18:0126:148:2726:14
8:27
-
10K
6.21 mi11:44:0052:138:2425:59
8:22
-0:05
15K
9.32 mi12:09:191:17:328:1925:19
8:09
-0:13
20K
12.43 mi12:34:591:43:128:1825:40
8:16
+0:07
Half
13.11 mi12:40:291:48:428:175:30
8:04
-0:12
25K
15.53 mi13:00:342:08:478:1720:05
8:17
+0:13
30K
18.64 mi13:27:122:35:258:2026:38
8:34
+0:17
20M
20.00 mi13:38:482:47:018:2111:36
8:32
-0:02
21M
21.00 mi13:47:572:56:108:239:09
9:09
+0:37
35K
21.75 mi13:54:103:02:238:236:13
8:19
-0:50
23M
23.00 mi14:05:013:13:148:2410:51
8:40
+0:21
24M
24.00 mi14:13:233:21:368:248:22
8:22
-0:18
40K
24.85 mi14:20:243:28:378:247:01
8:12
-0:10
25.2M
25.20 mi14:23:093:31:228:232:45
7:58
-0:14
Finish
26.22 mi14:30:473:39:008:227:38
7:29
-0:29

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

7:29 /mi

Average Pace

8:22 /mi

Slowest Pace

9:09 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

15:53

7% of race

Time at Steady Pace

2:24:53

66% of race

Time at Slower Pace

58:14

27% of race

Average Pace: 8:21 /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 mi11:18:0126:148:2726:14
8:27
#17172
10K
6.21 mi11:44:0052:138:2425:59
8:22
#17233
15K
9.32 mi12:09:191:17:328:1925:19
8:09
#16643
20K
12.43 mi12:34:591:43:128:1825:40
8:16
#16311
Half
13.11 mi12:40:291:48:428:175:30
8:04
#16230
25K
15.53 mi13:00:342:08:478:1720:05
8:17
#15966
30K
18.64 mi13:27:122:35:258:2026:38
8:34
#15737
20M
20.00 mi13:38:482:47:018:2111:36
8:32
#15568
21M
21.00 mi13:47:572:56:108:239:09
9:09
#15447
35K
21.75 mi13:54:103:02:238:236:13
8:19
#15394
23M
23.00 mi14:05:013:13:148:2410:51
8:40
#15302
24M
24.00 mi14:13:233:21:368:248:22
8:22
#15207
40K
24.85 mi14:20:243:28:378:247:01
8:12
#15068
25.2M
25.20 mi14:23:093:31:228:232:45
7:58
#14918
Finish
26.22 mi14:30:473:39:008:227:38
7:29
#14688
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi171726042604215499(Top 58%)4980(Top 44%)4980(Top 265%)
10K6.21 mi3.10 mi17233-616075-336075-3317330(Top 65%)6078(Top 53%)6078(Top 324%)
15K9.32 mi3.11 mi16643+5905689+3865689+38615499(Top 58%)4980(Top 44%)4980(Top 265%)
20K12.43 mi3.11 mi16311+3325494+1955494+19515365(Top 58%)4943(Top 43%)4943(Top 263%)
Half13.11 mi0.68 mi16230+815445+495445+4914927(Top 56%)4647(Top 41%)4647(Top 247%)
25K15.53 mi2.42 mi15966+2645313+1325313+13214852(Top 56%)4734(Top 41%)4734(Top 252%)
30K18.64 mi3.11 mi15737+2295216+975216+9714760(Top 55%)4791(Top 42%)4791(Top 255%)
20M20.00 mi1.36 mi15568+1695132+845132+8413873(Top 52%)4342(Top 38%)4342(Top 231%)
21M21.00 mi1.00 mi15447+1215088+445088+4414234(Top 53%)4611(Top 40%)4611(Top 246%)
35K21.75 mi0.75 mi15394+535065+235065+2314185(Top 53%)4665(Top 41%)4665(Top 248%)
23M23.00 mi1.25 mi15302+925031+345031+3414192(Top 53%)4722(Top 41%)4722(Top 251%)
24M24.00 mi1.00 mi15207+954981+504981+5013676(Top 51%)4495(Top 39%)4495(Top 239%)
40K24.85 mi0.85 mi15068+1394916+654916+6511458(Top 43%)3406(Top 30%)3406(Top 181%)
25.2M25.20 mi0.35 mi14918+1504837+794837+796477(Top 24%)1261(Top 11%)1261(Top 67%)
Finish26.22 mi1.02 mi14688+2304715+1224715+1228535(Top 32%)2056(Top 18%)2056(Top 109%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 58%
×21stories
+97ft-345ft

Overall

15499

Females

4980

F40-44

4980

5K→10K

3.1 - 6.2 mi

Top 65%
×5stories
+79ft-138ft

Overall

17330

Females

6078

F40-44

6078

10K→15K

6.2 - 9.3 mi

Top 58%
×3stories
+67ft-78ft

Overall

15499

Females

4980

F40-44

4980

15K→20K

9.3 - 12.4 mi

Top 58%
×5stories
+106ft-86ft

Overall

15365

Females

4943

F40-44

4943

20K→Half

12.4 - 13.1 mi

Top 56%
×2stories
+19ft-37ft

Overall

14927

Females

4647

F40-44

4647

Half→25K

13.1 - 15.5 mi

Top 56%
×4stories
+66ft-88ft

Overall

14852

Females

4734

F40-44

4734

25K→30K

15.5 - 18.6 mi

Top 55%
×9stories
+181ft-148ft

Overall

14760

Females

4791

F40-44

4791

30K→20M

18.6 - 20.0 mi

Top 52%
×5stories
+64ft-50ft

Overall

13873

Females

4342

F40-44

4342

20M→21M

20.0 - 21.0 mi

Top 53%
×8stories
+106ft-24ft

Overall

14234

Females

4611

F40-44

4611

21M→35K

21.0 - 21.8 mi

Top 53%
×7stories
+17ft-86ft

Overall

14185

Females

4665

F40-44

4665

35K→23M

21.8 - 23.0 mi

Top 53%
×5stories
+23ft-63ft

Overall

14192

Females

4722

F40-44

4722

23M→24M

23.0 - 24.0 mi

Top 51%
×6stories
+12ft-82ft

Overall

13676

Females

4495

F40-44

4495

24M→40K

24.0 - 24.9 mi

Top 43%
×1story
+6ft-20ft

Overall

11458

Females

3406

F40-44

3406

40K→25.2M

24.9 - 25.2 mi

Top 24%
×1story
+13ft-16ft

Overall

6477

Females

1261

F40-44

1261

25.2M→Finish

25.2 - 26.2 mi

Top 32%
×2stories
+22ft-21ft

Overall

8535

Females

2056

F40-44

2056

Passing Analysis

Category:
Athletes Passed
3150
Passed By
666
Net Change
+2484
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#17172
5K → 10K288349-61#17172#17233
10K → 15K63242+590#17233#16643
15K → 20K37038+332#16643#16311
20K → Half898+81#16311#16230
Half → 25K29026+264#16230#15966
25K → 30K30071+229#15966#15737
30K → 20M18112+169#15737#15568
20M → 21M14625+121#15568#15447
21M → 35K7522+53#15447#15394
35K → 23M12937+92#15394#15302
23M → 24M11823+95#15302#15207
24M → 40K15011+139#15207#15068
40K → 25.2M1500+150#15068#14918
25.2M → Finish2322+230#14918#14688
TOTALS3150666+2484
📊

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