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BOSTON MARATHON 2023

Caitlin Andrews

Bib: 30841•F

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
29:02
Rank: #21668
Start → 5K
29:02 | 9:21/mi
10K· 6.21 mi
56:58
Rank: #21309 (+359)
5K → 10K
27:56 | 8:59/mi
15K· 9.32 mi
1:24:44
Rank: #21005 (+304)
10K → 15K
27:46 | 8:56/mi
20K· 12.43 mi
1:53:45
Rank: #21006 (-1)
15K → 20K
29:01 | 9:20/mi
Half· 13.11 mi
2:00:01
Rank: #21018 (-12)
20K → Half
6:16 | 9:11/mi
25K· 15.53 mi
2:23:04
Rank: #20967 (+51)
Half → 25K
23:03 | 9:30/mi
30K· 18.64 mi
2:54:21
Rank: #21016 (-49)
25K → 30K
31:17 | 10:04/mi
20M
3:08:51
Rank: #21098 (-82)
30K → 20M
14:30 | 10:40/mi
21M
3:19:36
Rank: #21040 (+58)
20M → 21M
10:45 | 10:45/mi
35K· 21.75 mi
3:26:10
Rank: #20908 (+132)
21M → 35K
6:34 | 8:47/mi
23M
3:38:00
Rank: #20733 (+175)
35K → 23M
11:50 | 9:27/mi
24M
3:47:11
Rank: #20615 (+118)
23M → 24M
9:11 | 9:11/mi
40K· 24.85 mi
3:55:01
Rank: #20479 (+136)
24M → 40K
7:50 | 9:10/mi
25.2M
3:58:18
Rank: #20404 (+75)
40K → 25.2M
3:17 | 9:31/mi
Finish· 26.22 mi
4:06:58
Rank: #20264 (+140)
25.2M → Finish
8:40 | 8:30/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:00:01
Pace9:09 /mi
2nd Half
Distance13.11 mi
Time2:06:57
Pace9:41 /mi
📊Positive Split: 5.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:47:2429:029:2129:02
9:21
-
10K
6.21 mi12:15:2056:589:1027:56
8:59
-0:22
15K
9.32 mi12:43:061:24:449:0527:46
8:56
-0:03
20K
12.43 mi13:12:071:53:459:0929:01
9:20
+0:24
Half
13.11 mi13:18:232:00:019:096:16
9:11
-0:09
25K
15.53 mi13:41:262:23:049:1323:03
9:30
+0:19
30K
18.64 mi14:12:432:54:219:2131:17
10:04
+0:34
20M
20.00 mi14:27:133:08:519:2714:30
10:40
+0:36
21M
21.00 mi14:37:583:19:369:3010:45
10:45
+0:05
35K
21.75 mi14:44:323:26:109:296:34
8:47
-1:58
23M
23.00 mi14:56:223:38:009:2911:50
9:27
+0:40
24M
24.00 mi15:05:333:47:119:289:11
9:11
-0:16
40K
24.85 mi15:13:233:55:019:277:50
9:10
-0:01
25.2M
25.20 mi15:16:403:58:189:273:17
9:31
+0:21
Finish
26.22 mi15:25:204:06:589:268:40
8:30
-1:01

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

8:30 /mi

Average Pace

9:26 /mi

Slowest Pace

10:45 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:10:56

29% of race

Time at Steady Pace

1:59:30

48% of race

Time at Slower Pace

56:32

23% of race

Average Pace: 9:25 /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 mi11:47:2429:029:2129:02
9:21
#21668
10K
6.21 mi12:15:2056:589:1027:56
8:59
#21309
15K
9.32 mi12:43:061:24:449:0527:46
8:56
#21005
20K
12.43 mi13:12:071:53:459:0929:01
9:20
#21006
Half
13.11 mi13:18:232:00:019:096:16
9:11
#21018
25K
15.53 mi13:41:262:23:049:1323:03
9:30
#20967
30K
18.64 mi14:12:432:54:219:2131:17
10:04
#21016
20M
20.00 mi14:27:133:08:519:2714:30
10:40
#21098
21M
21.00 mi14:37:583:19:369:3010:45
10:45
#21040
35K
21.75 mi14:44:323:26:109:296:34
8:47
#20908
23M
23.00 mi14:56:223:38:009:2911:50
9:27
#20733
24M
24.00 mi15:05:333:47:119:289:11
9:11
#20615
40K
24.85 mi15:13:233:55:019:277:50
9:10
#20479
25.2M
25.20 mi15:16:403:58:189:273:17
9:31
#20404
Finish
26.22 mi15:25:204:06:589:268:40
8:30
#20264
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi216688727872720212(Top 76%)7787(Top 68%)7787(Top 159%)
10K6.21 mi3.10 mi21309+3598483+2448483+24420849(Top 78%)8183(Top 72%)8183(Top 168%)
15K9.32 mi3.11 mi21005+3048289+1948289+19420212(Top 76%)7787(Top 68%)7787(Top 159%)
20K12.43 mi3.11 mi21006-18278+118278+1121074(Top 79%)8278(Top 72%)8278(Top 169%)
Half13.11 mi0.68 mi21018-128278827821120(Top 79%)8314(Top 73%)8314(Top 170%)
25K15.53 mi2.42 mi20967+518245+338245+3320855(Top 78%)8191(Top 72%)8191(Top 168%)
30K18.64 mi3.11 mi21016-498292-478292-4721211(Top 80%)8466(Top 74%)8466(Top 173%)
20M20.00 mi1.36 mi21098-828356-648356-6422085(Top 83%)9030(Top 79%)9030(Top 185%)
21M21.00 mi1.00 mi21040+588339+178339+1720266(Top 76%)8073(Top 71%)8073(Top 165%)
35K21.75 mi0.75 mi20908+1328269+708269+7016886(Top 63%)6230(Top 55%)6230(Top 128%)
23M23.00 mi1.25 mi20733+1758185+848185+8418155(Top 68%)6956(Top 61%)6956(Top 142%)
24M24.00 mi1.00 mi20615+1188134+518134+5118030(Top 68%)6925(Top 61%)6925(Top 142%)
40K24.85 mi0.85 mi20479+1368055+798055+7916970(Top 64%)6394(Top 56%)6394(Top 131%)
25.2M25.20 mi0.35 mi20404+758020+358020+3515392(Top 58%)5553(Top 49%)5553(Top 114%)
Finish26.22 mi1.02 mi20264+1407950+707950+7015505(Top 58%)5552(Top 49%)5552(Top 114%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 76%
×21stories
+97ft-345ft

Overall

20212

Females

7787

F18-39

7787

5K→10K

3.1 - 6.2 mi

Top 78%
×5stories
+79ft-138ft

Overall

20849

Females

8183

F18-39

8183

10K→15K

6.2 - 9.3 mi

Top 76%
×3stories
+67ft-78ft

Overall

20212

Females

7787

F18-39

7787

15K→20K

9.3 - 12.4 mi

Top 79%
×5stories
+106ft-86ft

Overall

21074

Females

8278

F18-39

8278

20K→Half

12.4 - 13.1 mi

Top 79%
×2stories
+19ft-37ft

Overall

21120

Females

8314

F18-39

8314

Half→25K

13.1 - 15.5 mi

Top 78%
×4stories
+66ft-88ft

Overall

20855

Females

8191

F18-39

8191

25K→30K

15.5 - 18.6 mi

Top 80%
×9stories
+181ft-148ft

Overall

21211

Females

8466

F18-39

8466

30K→20M

18.6 - 20.0 mi

Top 83%
×5stories
+64ft-50ft

Overall

22085

Females

9030

F18-39

9030

20M→21M

20.0 - 21.0 mi

Top 76%
×8stories
+106ft-24ft

Overall

20266

Females

8073

F18-39

8073

21M→35K

21.0 - 21.8 mi

Top 63%
×7stories
+17ft-86ft

Overall

16886

Females

6230

F18-39

6230

35K→23M

21.8 - 23.0 mi

Top 68%
×5stories
+23ft-63ft

Overall

18155

Females

6956

F18-39

6956

23M→24M

23.0 - 24.0 mi

Top 68%
×6stories
+12ft-82ft

Overall

18030

Females

6925

F18-39

6925

24M→40K

24.0 - 24.9 mi

Top 64%
×1story
+6ft-20ft

Overall

16970

Females

6394

F18-39

6394

40K→25.2M

24.9 - 25.2 mi

Top 58%
×1story
+13ft-16ft

Overall

15392

Females

5553

F18-39

5553

25.2M→Finish

25.2 - 26.2 mi

Top 58%
×2stories
+22ft-21ft

Overall

15505

Females

5552

F18-39

5552

Passing Analysis

Category:
Athletes Passed
2241
Passed By
837
Net Change
+1404
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#21668
5K → 10K498139+359#21668#21309
10K → 15K36460+304#21309#21005
15K → 20K159160-1#21005#21006
20K → Half2436-12#21006#21018
Half → 25K12776+51#21018#20967
25K → 30K132181-49#20967#21016
30K → 20M47129-82#21016#21098
20M → 21M9840+58#21098#21040
21M → 35K1320+132#21040#20908
35K → 23M1827+175#20908#20733
23M → 24M1235+118#20733#20615
24M → 40K1371+136#20615#20479
40K → 25.2M750+75#20479#20404
25.2M → Finish1433+140#20404#20264
TOTALS2241837+1404
📊

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