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BOSTON MARATHON 2023

Caroline Maguire

Bib: 12441•F

VA

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 39%
Gender (Female)
#0 / 11423
Top 20%
Division (F18-39)
#0 / 4884
Top 35%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
24:24
Rank: #12874
Start → 5K
24:24 | 7:51/mi
10K· 6.21 mi
48:46
Rank: #13173 (-299)
5K → 10K
24:22 | 7:51/mi
15K· 9.32 mi
1:12:56
Rank: #12926 (+247)
10K → 15K
24:10 | 7:47/mi
20K· 12.43 mi
1:37:01
Rank: #12457 (+469)
15K → 20K
24:05 | 7:45/mi
Half· 13.11 mi
1:42:15
Rank: #12402 (+55)
20K → Half
5:14 | 7:40/mi
25K· 15.53 mi
2:00:50
Rank: #11994 (+408)
Half → 25K
18:35 | 7:40/mi
30K· 18.64 mi
2:24:58
Rank: #11415 (+579)
25K → 30K
24:08 | 7:46/mi
20M
2:35:31
Rank: #11153 (+262)
30K → 20M
10:33 | 7:46/mi
21M
2:43:41
Rank: #10958 (+195)
20M → 21M
8:10 | 8:10/mi
35K· 21.75 mi
2:49:28
Rank: #10917 (+41)
21M → 35K
5:47 | 7:44/mi
23M
2:59:19
Rank: #10783 (+134)
35K → 23M
9:51 | 7:52/mi
24M
3:06:52
Rank: #10637 (+146)
23M → 24M
7:33 | 7:33/mi
40K· 24.85 mi
3:13:30
Rank: #10517 (+120)
24M → 40K
6:38 | 7:45/mi
25.2M
3:16:22
Rank: #10477 (+40)
40K → 25.2M
2:52 | 8:19/mi
Finish· 26.22 mi
3:24:11
Rank: #10415 (+62)
25.2M → Finish
7:49 | 7:40/mi

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:42:15
Pace7:48 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:41:56
Pace7:47 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:52:1124:247:5124:24
7:51
-
10K
6.21 mi11:16:3348:467:5124:22
7:51
0:00
15K
9.32 mi11:40:431:12:567:4924:10
7:47
-0:04
20K
12.43 mi12:04:481:37:017:4824:05
7:45
-0:02
Half
13.11 mi12:10:021:42:157:485:14
7:40
-0:05
25K
15.53 mi12:28:372:00:507:4718:35
7:40
0:00
30K
18.64 mi12:52:452:24:587:4724:08
7:46
+0:06
20M
20.00 mi13:03:182:35:317:4710:33
7:46
0:00
21M
21.00 mi13:11:282:43:417:488:10
8:10
+0:24
35K
21.75 mi13:17:152:49:287:485:47
7:44
-0:26
23M
23.00 mi13:27:062:59:197:489:51
7:52
+0:08
24M
24.00 mi13:34:393:06:527:477:33
7:33
-0:19
40K
24.85 mi13:41:173:13:307:476:38
7:45
+0:12
25.2M
25.20 mi13:44:093:16:227:482:52
8:19
+0:34
Finish
26.22 mi13:51:583:24:117:487:49
7:40
-0:39

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

7:33 /mi

Average Pace

7:48 /mi

Slowest Pace

8:19 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:21:19

99% of race

Time at Steady Pace

2:52

1% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:47 /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 mi10:52:1124:247:5124:24
7:51
#12874
10K
6.21 mi11:16:3348:467:5124:22
7:51
#13173
15K
9.32 mi11:40:431:12:567:4924:10
7:47
#12926
20K
12.43 mi12:04:481:37:017:4824:05
7:45
#12457
Half
13.11 mi12:10:021:42:157:485:14
7:40
#12402
25K
15.53 mi12:28:372:00:507:4718:35
7:40
#11994
30K
18.64 mi12:52:452:24:587:4724:08
7:46
#11415
20M
20.00 mi13:03:182:35:317:4710:33
7:46
#11153
21M
21.00 mi13:11:282:43:417:488:10
8:10
#10958
35K
21.75 mi13:17:152:49:287:485:47
7:44
#10917
23M
23.00 mi13:27:062:59:197:489:51
7:52
#10783
24M
24.00 mi13:34:393:06:527:477:33
7:33
#10637
40K
24.85 mi13:41:173:13:307:476:38
7:45
#10517
25.2M
25.20 mi13:44:093:16:227:482:52
8:19
#10477
Finish
26.22 mi13:51:583:24:117:487:49
7:40
#10415
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi128743365336512534(Top 47%)3201(Top 28%)3201(Top 66%)
10K6.21 mi3.10 mi13173-2993550-1853550-18513488(Top 51%)3712(Top 32%)3712(Top 76%)
15K9.32 mi3.11 mi12926+2473411+1393411+13912534(Top 47%)3201(Top 28%)3201(Top 66%)
20K12.43 mi3.11 mi12457+4693176+2353176+23511325(Top 43%)2585(Top 23%)2585(Top 53%)
Half13.11 mi0.68 mi12402+553149+273149+2711650(Top 44%)2694(Top 24%)2694(Top 55%)
25K15.53 mi2.42 mi11994+4082934+2152934+21510048(Top 38%)2024(Top 18%)2024(Top 41%)
30K18.64 mi3.11 mi11415+5792641+2932641+2939133(Top 34%)1771(Top 16%)1771(Top 36%)
20M20.00 mi1.36 mi11153+2622517+1242517+1248620(Top 32%)1653(Top 14%)1653(Top 34%)
21M21.00 mi1.00 mi10958+1952441+762441+768457(Top 32%)1712(Top 15%)1712(Top 35%)
35K21.75 mi0.75 mi10917+412433+82433+810181(Top 38%)2450(Top 21%)2450(Top 50%)
23M23.00 mi1.25 mi10783+1342397+362397+368892(Top 33%)1974(Top 17%)1974(Top 40%)
24M24.00 mi1.00 mi10637+1462344+532344+538090(Top 30%)1723(Top 15%)1723(Top 35%)
40K24.85 mi0.85 mi10517+1202320+242320+248427(Top 32%)1917(Top 17%)1917(Top 39%)
25.2M25.20 mi0.35 mi10477+402307+132307+138475(Top 32%)2026(Top 18%)2026(Top 41%)
Finish26.22 mi1.02 mi10415+622302+52302+59809(Top 37%)2614(Top 23%)2614(Top 54%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 47%
×21stories
+97ft-345ft

Overall

12534

Females

3201

F18-39

3201

5K→10K

3.1 - 6.2 mi

Top 51%
×5stories
+79ft-138ft

Overall

13488

Females

3712

F18-39

3712

10K→15K

6.2 - 9.3 mi

Top 47%
×3stories
+67ft-78ft

Overall

12534

Females

3201

F18-39

3201

15K→20K

9.3 - 12.4 mi

Top 43%
×5stories
+106ft-86ft

Overall

11325

Females

2585

F18-39

2585

20K→Half

12.4 - 13.1 mi

Top 44%
×2stories
+19ft-37ft

Overall

11650

Females

2694

F18-39

2694

Half→25K

13.1 - 15.5 mi

Top 38%
×4stories
+66ft-88ft

Overall

10048

Females

2024

F18-39

2024

25K→30K

15.5 - 18.6 mi

Top 34%
×9stories
+181ft-148ft

Overall

9133

Females

1771

F18-39

1771

30K→20M

18.6 - 20.0 mi

Top 32%
×5stories
+64ft-50ft

Overall

8620

Females

1653

F18-39

1653

20M→21M

20.0 - 21.0 mi

Top 32%
×8stories
+106ft-24ft

Overall

8457

Females

1712

F18-39

1712

21M→35K

21.0 - 21.8 mi

Top 38%
×7stories
+17ft-86ft

Overall

10181

Females

2450

F18-39

2450

35K→23M

21.8 - 23.0 mi

Top 33%
×5stories
+23ft-63ft

Overall

8892

Females

1974

F18-39

1974

23M→24M

23.0 - 24.0 mi

Top 30%
×6stories
+12ft-82ft

Overall

8090

Females

1723

F18-39

1723

24M→40K

24.0 - 24.9 mi

Top 32%
×1story
+6ft-20ft

Overall

8427

Females

1917

F18-39

1917

40K→25.2M

24.9 - 25.2 mi

Top 32%
×1story
+13ft-16ft

Overall

8475

Females

2026

F18-39

2026

25.2M→Finish

25.2 - 26.2 mi

Top 37%
×2stories
+22ft-21ft

Overall

9809

Females

2614

F18-39

2614

Passing Analysis

Category:
Athletes Passed
3252
Passed By
793
Net Change
+2459
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#12874
5K → 10K185484-299#12874#13173
10K → 15K349102+247#13173#12926
15K → 20K49728+469#12926#12457
20K → Half6510+55#12457#12402
Half → 25K4157+408#12402#11994
25K → 30K5867+579#11994#11415
30K → 20M2675+262#11415#11153
20M → 21M20510+195#11153#10958
21M → 35K6726+41#10958#10917
35K → 23M16531+134#10917#10783
23M → 24M15812+146#10783#10637
24M → 40K13515+120#10637#10517
40K → 25.2M488+40#10517#10477
25.2M → Finish11048+62#10477#10415
TOTALS3252793+2459
📊

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