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BOSTON MARATHON 2023

Casey Shanley

Bib: 25682•F

MA

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

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
32:31
Rank: #24613
Start → 5K
32:31 | 10:28/mi
10K· 6.21 mi
1:04:54
Rank: #24599 (+14)
5K → 10K
32:23 | 10:25/mi
15K· 9.32 mi
1:37:00
Rank: #24446 (+153)
10K → 15K
32:06 | 10:20/mi
20K· 12.43 mi
2:09:27
Rank: #24261 (+185)
15K → 20K
32:27 | 10:27/mi
Half· 13.11 mi
2:16:35
Rank: #24248 (+13)
20K → Half
7:08 | 10:27/mi
25K· 15.53 mi
2:41:59
Rank: #24038 (+210)
Half → 25K
25:24 | 10:29/mi
30K· 18.64 mi
3:15:10
Rank: #23741 (+297)
25K → 30K
33:11 | 10:41/mi
20M
3:30:21
Rank: #23682 (+59)
30K → 20M
15:11 | 11:10/mi
21M
3:40:52
Rank: #23521 (+161)
20M → 21M
10:31 | 10:31/mi
35K· 21.75 mi
3:49:52
Rank: #23578 (-57)
21M → 35K
9:00 | 12:02/mi
23M
4:02:48
Rank: #23458 (+120)
35K → 23M
12:56 | 10:20/mi
24M
4:12:21
Rank: #23329 (+129)
23M → 24M
9:33 | 9:33/mi
40K· 24.85 mi
4:20:22
Rank: #23151 (+178)
24M → 40K
8:01 | 9:23/mi
25.2M
4:24:07
Rank: #23110 (+41)
40K → 25.2M
3:45 | 10:52/mi
Finish· 26.22 mi
4:33:58
Rank: #23036 (+74)
25.2M → Finish
9:51 | 9:40/mi

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time2:16:35
Pace10:25 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time2:17:23
Pace10:29 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:54:5532:3110:2832:31
10:28
-
10K
6.21 mi12:27:181:04:5410:2732:23
10:25
-0:03
15K
9.32 mi12:59:241:37:0010:2432:06
10:20
-0:05
20K
12.43 mi13:31:512:09:2710:2532:27
10:27
+0:07
Half
13.11 mi13:38:592:16:3510:257:08
10:27
0:00
25K
15.53 mi14:04:232:41:5910:2625:24
10:29
+0:02
30K
18.64 mi14:37:343:15:1010:2833:11
10:41
+0:12
20M
20.00 mi14:52:453:30:2110:3115:11
11:10
+0:29
21M
21.00 mi15:03:163:40:5210:3110:31
10:31
-0:39
35K
21.75 mi15:12:163:49:5210:349:00
12:02
+1:31
23M
23.00 mi15:25:124:02:4810:3312:56
10:20
-1:42
24M
24.00 mi15:34:454:12:2110:319:33
9:33
-0:47
40K
24.85 mi15:42:464:20:2210:298:01
9:23
-0:10
25.2M
25.20 mi15:46:314:24:0710:293:45
10:52
+1:29
Finish
26.22 mi15:56:224:33:5810:279:51
9:40
-1:12

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

9:23 /mi

Average Pace

10:27 /mi

Slowest Pace

12:02 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

27:25

10% of race

Time at Steady Pace

3:38:37

80% of race

Time at Slower Pace

27:56

10% of race

Average Pace: 10:27 /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 mi11:54:5532:3110:2832:31
10:28
#24613
10K
6.21 mi12:27:181:04:5410:2732:23
10:25
#24599
15K
9.32 mi12:59:241:37:0010:2432:06
10:20
#24446
20K
12.43 mi13:31:512:09:2710:2532:27
10:27
#24261
Half
13.11 mi13:38:592:16:3510:257:08
10:27
#24248
25K
15.53 mi14:04:232:41:5910:2625:24
10:29
#24038
30K
18.64 mi14:37:343:15:1010:2833:11
10:41
#23741
20M
20.00 mi14:52:453:30:2110:3115:11
11:10
#23682
21M
21.00 mi15:03:163:40:5210:3110:31
10:31
#23521
35K
21.75 mi15:12:163:49:5210:349:00
12:02
#23578
23M
23.00 mi15:25:124:02:4810:3312:56
10:20
#23458
24M
24.00 mi15:34:454:12:2110:319:33
9:33
#23329
40K
24.85 mi15:42:464:20:2210:298:01
9:23
#23151
25.2M
25.20 mi15:46:314:24:0710:293:45
10:52
#23110
Finish
26.22 mi15:56:224:33:5810:279:51
9:40
#23036
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi24613102221022224144(Top 91%)9974(Top 87%)9974(Top 204%)
10K6.21 mi3.10 mi24599+1410208+1410208+1424538(Top 92%)10187(Top 89%)10187(Top 209%)
15K9.32 mi3.11 mi24446+15310130+7810130+7824144(Top 91%)9974(Top 87%)9974(Top 204%)
20K12.43 mi3.11 mi24261+18510038+9210038+9223744(Top 89%)9770(Top 86%)9770(Top 200%)
Half13.11 mi0.68 mi24248+1310029+910029+924132(Top 91%)9984(Top 87%)9984(Top 204%)
25K15.53 mi2.42 mi24038+2109920+1099920+10923161(Top 87%)9472(Top 83%)9472(Top 194%)
30K18.64 mi3.11 mi23741+2979776+1449776+14422579(Top 85%)9229(Top 81%)9229(Top 189%)
20M20.00 mi1.36 mi23682+599755+219755+2122982(Top 86%)9502(Top 83%)9502(Top 195%)
21M21.00 mi1.00 mi23521+1619675+809675+8019675(Top 74%)7756(Top 68%)7756(Top 159%)
35K21.75 mi0.75 mi23578-579712-379712-3724713(Top 93%)10510(Top 92%)10510(Top 215%)
23M23.00 mi1.25 mi23458+1209662+509662+5020920(Top 79%)8480(Top 74%)8480(Top 174%)
24M24.00 mi1.00 mi23329+1299600+629600+6219418(Top 73%)7681(Top 67%)7681(Top 157%)
40K24.85 mi0.85 mi23151+1789521+799521+7917896(Top 67%)6904(Top 60%)6904(Top 141%)
25.2M25.20 mi0.35 mi23110+419500+219500+2120210(Top 76%)8179(Top 72%)8179(Top 167%)
Finish26.22 mi1.02 mi23036+749464+369464+3620708(Top 78%)8418(Top 74%)8418(Top 172%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 91%
×21stories
+97ft-345ft

Overall

24144

Females

9974

F18-39

9974

5K→10K

3.1 - 6.2 mi

Top 92%
×5stories
+79ft-138ft

Overall

24538

Females

10187

F18-39

10187

10K→15K

6.2 - 9.3 mi

Top 91%
×3stories
+67ft-78ft

Overall

24144

Females

9974

F18-39

9974

15K→20K

9.3 - 12.4 mi

Top 89%
×5stories
+106ft-86ft

Overall

23744

Females

9770

F18-39

9770

20K→Half

12.4 - 13.1 mi

Top 91%
×2stories
+19ft-37ft

Overall

24132

Females

9984

F18-39

9984

Half→25K

13.1 - 15.5 mi

Top 87%
×4stories
+66ft-88ft

Overall

23161

Females

9472

F18-39

9472

25K→30K

15.5 - 18.6 mi

Top 85%
×9stories
+181ft-148ft

Overall

22579

Females

9229

F18-39

9229

30K→20M

18.6 - 20.0 mi

Top 86%
×5stories
+64ft-50ft

Overall

22982

Females

9502

F18-39

9502

20M→21M

20.0 - 21.0 mi

Top 74%
×8stories
+106ft-24ft

Overall

19675

Females

7756

F18-39

7756

21M→35K

21.0 - 21.8 mi

Top 93%
×7stories
+17ft-86ft

Overall

24713

Females

10510

F18-39

10510

35K→23M

21.8 - 23.0 mi

Top 79%
×5stories
+23ft-63ft

Overall

20920

Females

8480

F18-39

8480

23M→24M

23.0 - 24.0 mi

Top 73%
×6stories
+12ft-82ft

Overall

19418

Females

7681

F18-39

7681

24M→40K

24.0 - 24.9 mi

Top 67%
×1story
+6ft-20ft

Overall

17896

Females

6904

F18-39

6904

40K→25.2M

24.9 - 25.2 mi

Top 76%
×1story
+13ft-16ft

Overall

20210

Females

8179

F18-39

8179

25.2M→Finish

25.2 - 26.2 mi

Top 78%
×2stories
+22ft-21ft

Overall

20708

Females

8418

F18-39

8418

Passing Analysis

Category:
Athletes Passed
1980
Passed By
403
Net Change
+1577
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#24613
5K → 10K203189+14#24613#24599
10K → 15K20350+153#24599#24446
15K → 20K20520+185#24446#24261
20K → Half2815+13#24261#24248
Half → 25K22313+210#24248#24038
25K → 30K3058+297#24038#23741
30K → 20M8526+59#23741#23682
20M → 21M1610+161#23682#23521
21M → 35K1370-57#23521#23578
35K → 23M1211+120#23578#23458
23M → 24M1334+129#23458#23329
24M → 40K1791+178#23329#23151
40K → 25.2M421+41#23151#23110
25.2M → Finish795+74#23110#23036
TOTALS1980403+1577
📊

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