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BOSTON MARATHON 2023

Caroline Daugherty

Bib: 15167•F

MA

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 40%
Gender (Female)
#0 / 11423
Top 21%
Division (F18-39)
#0 / 4884
Top 37%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
7:47/mi
24:11
↑ 97↓ 3451.5%
10K· 6.21 mi
7:46/mi
48:19
↑ 79↓ 1380.4%
15K· 9.32 mi
7:49/mi
1:12:35
↑ 67↓ 78
20K· 12.43 mi
7:45/mi
1:36:39
↑ 106↓ 860.1%
Half· 13.11 mi
7:43/mi
1:41:55
↑ 19↓ 370.5%
25K· 15.53 mi
7:45/mi
2:00:42
↑ 66↓ 880.2%
30K· 18.64 mi
7:52/mi
2:25:08
↑ 181↓ 1480.2%
20M
7:58/mi
2:35:57
↑ 64↓ 500.2%
21M
8:18/mi
2:44:15
↑ 106↓ 241.6%
35K· 21.75 mi
7:52/mi
2:50:08
↑ 17↓ 861.7%
23M
8:01/mi
3:00:10
↑ 23↓ 630.6%
24M
7:50/mi
3:08:00
↓ 821.3%
40K· 24.85 mi
7:43/mi
3:14:36
↓ 200.3%
25.2M
8:10/mi
3:17:25
↑ 13↓ 160.2%
Finish· 26.22 mi
7:24/mi
3:24:57
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:41:55
Pace7:46 /mi
2nd Half
Distance13.11 mi
Time1:43:02
Pace7:52 /mi
📊Positive Split: 1.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:53:4624:117:4724:11
7:47
-
10K
6.21 mi11:17:5448:197:4724:08
7:46
-0:01
15K
9.32 mi11:42:101:12:357:4724:16
7:49
+0:03
20K
12.43 mi12:06:141:36:397:4724:04
7:45
-0:04
Half
13.11 mi12:11:301:41:557:465:16
7:43
-0:02
25K
15.53 mi12:30:172:00:427:4618:47
7:45
+0:02
30K
18.64 mi12:54:432:25:087:4724:26
7:52
+0:07
20M
20.00 mi13:05:322:35:577:4810:49
7:58
+0:06
21M
21.00 mi13:13:502:44:157:498:18
8:18
+0:20
35K
21.75 mi13:19:432:50:087:495:53
7:52
-0:26
23M
23.00 mi13:29:453:00:107:5010:02
8:01
+0:09
24M
24.00 mi13:37:353:08:007:507:50
7:50
-0:11
40K
24.85 mi13:44:113:14:367:506:36
7:43
-0:07
25.2M
25.20 mi13:47:003:17:257:502:49
8:10
+0:27
Finish
26.22 mi13:54:323:24:577:497:32
7:24
-0:46

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

7:24 /mi

Average Pace

7:49 /mi

Slowest Pace

8:18 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:13:50

95% of race

Time at Steady Pace

11:07

5% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:49 /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 mi10:53:4624:117:4724:11
7:47
#12217
10K
6.21 mi11:17:5448:197:4724:08
7:46
#12502
15K
9.32 mi11:42:101:12:357:4724:16
7:49
#12554
20K
12.43 mi12:06:141:36:397:4724:04
7:45
#12185
Half
13.11 mi12:11:301:41:557:465:16
7:43
#12177
25K
15.53 mi12:30:172:00:427:4618:47
7:45
#11911
30K
18.64 mi12:54:432:25:087:4724:26
7:52
#11493
20M
20.00 mi13:05:322:35:577:4810:49
7:58
#11344
21M
21.00 mi13:13:502:44:157:498:18
8:18
#11176
35K
21.75 mi13:19:432:50:087:495:53
7:52
#11173
23M
23.00 mi13:29:453:00:107:5010:02
8:01
#11067
24M
24.00 mi13:37:353:08:007:507:50
7:50
#11008
40K
24.85 mi13:44:113:14:367:506:36
7:43
#10872
25.2M
25.20 mi13:47:003:17:257:502:49
8:10
#10799
Finish
26.22 mi13:54:323:24:577:497:32
7:24
#10630
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi122172985298512825(Top 48%)3358(Top 29%)3358(Top 69%)
10K6.21 mi3.10 mi12502-2853155-1703155-17012851(Top 48%)3340(Top 29%)3340(Top 68%)
15K9.32 mi3.11 mi12554-523205-503205-5012825(Top 48%)3358(Top 29%)3358(Top 69%)
20K12.43 mi3.11 mi12185+3693025+1803025+18011281(Top 42%)2561(Top 22%)2561(Top 52%)
Half13.11 mi0.68 mi12177+83022+33022+312049(Top 45%)2927(Top 26%)2927(Top 60%)
25K15.53 mi2.42 mi11911+2662887+1352887+13510688(Top 40%)2330(Top 20%)2330(Top 48%)
30K18.64 mi3.11 mi11493+4182684+2032684+2039869(Top 37%)2102(Top 18%)2102(Top 43%)
20M20.00 mi1.36 mi11344+1492621+632621+6310002(Top 38%)2233(Top 20%)2233(Top 46%)
21M21.00 mi1.00 mi11176+1682549+722549+729261(Top 35%)2038(Top 18%)2038(Top 42%)
35K21.75 mi0.75 mi11173+32558-92558-911156(Top 42%)2943(Top 26%)2943(Top 60%)
23M23.00 mi1.25 mi11067+1062524+342524+349855(Top 37%)2439(Top 21%)2439(Top 50%)
24M24.00 mi1.00 mi11008+592529-52529-510056(Top 38%)2625(Top 23%)2625(Top 54%)
40K24.85 mi0.85 mi10872+1362489+402489+408145(Top 31%)1809(Top 16%)1809(Top 37%)
25.2M25.20 mi0.35 mi10799+732463+262463+267600(Top 29%)1670(Top 15%)1670(Top 34%)
Finish26.22 mi1.02 mi10630+1692403+602403+607782(Top 29%)1742(Top 15%)1742(Top 36%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 48%
×21story building
+97ft-345ft

Overall

12825

Females

3358

F18-39

3358

5K→10K

3.1 - 6.2 mi

Top 48%
×5story building
+79ft-138ft

Overall

12851

Females

3340

F18-39

3340

10K→15K

6.2 - 9.3 mi

Top 48%
×3story building
+67ft-78ft

Overall

12825

Females

3358

F18-39

3358

15K→20K

9.3 - 12.4 mi

Top 42%
×5story building
+106ft-86ft

Overall

11281

Females

2561

F18-39

2561

20K→Half

12.4 - 13.1 mi

Top 45%
×2story building
+19ft-37ft

Overall

12049

Females

2927

F18-39

2927

Half→25K

13.1 - 15.5 mi

Top 40%
×4story building
+66ft-88ft

Overall

10688

Females

2330

F18-39

2330

25K→30K

15.5 - 18.6 mi

Top 37%
×9story building
+181ft-148ft

Overall

9869

Females

2102

F18-39

2102

30K→20M

18.6 - 20.0 mi

Top 38%
×5story building
+64ft-50ft

Overall

10002

Females

2233

F18-39

2233

20M→21M

20.0 - 21.0 mi

Top 35%
×8story building
+106ft-24ft

Overall

9261

Females

2038

F18-39

2038

21M→35K

21.0 - 21.8 mi

Top 42%
×7story building
+17ft-86ft

Overall

11156

Females

2943

F18-39

2943

35K→23M

21.8 - 23.0 mi

Top 37%
×5story building
+23ft-63ft

Overall

9855

Females

2439

F18-39

2439

23M→24M

23.0 - 24.0 mi

Top 38%
×6story building
+12ft-82ft

Overall

10056

Females

2625

F18-39

2625

24M→40K

24.0 - 24.9 mi

Top 31%
×1story
+6ft-20ft

Overall

8145

Females

1809

F18-39

1809

40K→25.2M

24.9 - 25.2 mi

Top 29%
×1story
+13ft-16ft

Overall

7600

Females

1670

F18-39

1670

25.2M→Finish

25.2 - 26.2 mi

Top 29%
×2story building
+22ft-21ft

Overall

7782

Females

1742

F18-39

1742

Passing Analysis

Category:
Athletes Passed
2580
Passed By
993
Net Change
+1587
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#12217
5K → 10K193478-285#12217#12502
10K → 15K172224-52#12502#12554
15K → 20K40334+369#12554#12185
20K → Half3628+8#12185#12177
Half → 25K28822+266#12177#11911
25K → 30K44426+418#11911#11493
30K → 20M16718+149#11493#11344
20M → 21M18820+168#11344#11176
21M → 35K4542+3#11176#11173
35K → 23M14236+106#11173#11067
23M → 24M9334+59#11067#11008
24M → 40K14812+136#11008#10872
40K → 25.2M774+73#10872#10799
25.2M → Finish18415+169#10799#10630
TOTALS2580993+1587
📊

Passing Visuals

Category:
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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