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BOSTON MARATHON 2023

Caroline Sullivan

Bib: 16047•F

MA

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 29%
Gender (Female)
#0 / 11423
Top 10%
Division (F18-39)
#0 / 4884
Top 18%
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
7:16/mi
22:34
↑ 97↓ 3451.5%
10K· 6.21 mi
7:16/mi
45:10
↑ 79↓ 1380.4%
15K· 9.32 mi
7:18/mi
1:07:50
↑ 67↓ 78
20K· 12.43 mi
7:15/mi
1:30:21
↑ 106↓ 860.1%
Half· 13.11 mi
7:04/mi
1:35:10
↑ 19↓ 370.5%
25K· 15.53 mi
7:33/mi
1:53:28
↑ 66↓ 880.2%
30K· 18.64 mi
7:33/mi
2:16:56
↑ 181↓ 1480.2%
20M
7:36/mi
2:27:15
↑ 64↓ 500.2%
21M
8:08/mi
2:35:23
↑ 106↓ 241.6%
35K· 21.75 mi
7:21/mi
2:40:53
↑ 17↓ 861.7%
23M
7:45/mi
2:50:35
↑ 23↓ 630.6%
24M
7:23/mi
2:57:58
↓ 821.3%
40K· 24.85 mi
7:35/mi
3:04:27
↓ 200.3%
25.2M
8:16/mi
3:07:18
↑ 13↓ 160.2%
Finish· 26.22 mi
7:16/mi
3:14:42
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:35:10
Pace7:16 /mi
2nd Half
Distance13.11 mi
Time1:39:32
Pace7:36 /mi
📊Positive Split: 4.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:12:4322:347:1622:34
7:16
-
10K
6.21 mi11:35:1945:107:1622:36
7:16
0:00
15K
9.32 mi11:57:591:07:507:1722:40
7:18
+0:02
20K
12.43 mi12:20:301:30:217:1622:31
7:15
-0:03
Half
13.11 mi12:25:191:35:107:164:49
7:04
-0:11
25K
15.53 mi12:43:371:53:287:1818:18
7:33
+0:29
30K
18.64 mi13:07:052:16:567:2123:28
7:33
0:00
20M
20.00 mi13:17:242:27:157:2210:19
7:36
+0:03
21M
21.00 mi13:25:322:35:237:248:08
8:08
+0:32
35K
21.75 mi13:31:022:40:537:245:30
7:21
-0:47
23M
23.00 mi13:40:442:50:357:259:42
7:45
+0:24
24M
24.00 mi13:48:072:57:587:257:23
7:23
-0:22
40K
24.85 mi13:54:363:04:277:256:29
7:35
+0:12
25.2M
25.20 mi13:57:273:07:187:262:51
8:16
+0:41
Finish
26.22 mi14:04:513:14:427:267:24
7:16
-1:00

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

7:04 /mi

Average Pace

7:26 /mi

Slowest Pace

8:16 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:03:43

94% of race

Time at Steady Pace

10:59

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:26 /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 mi11:12:4322:347:1622:34
7:16
#7903
10K
6.21 mi11:35:1945:107:1622:36
7:16
#8246
15K
9.32 mi11:57:591:07:507:1722:40
7:18
#8296
20K
12.43 mi12:20:301:30:217:1622:31
7:15
#8041
Half
13.11 mi12:25:191:35:107:164:49
7:04
#7978
25K
15.53 mi12:43:371:53:287:1818:18
7:33
#8105
30K
18.64 mi13:07:052:16:567:2123:28
7:33
#7989
20M
20.00 mi13:17:242:27:157:2210:19
7:36
#7890
21M
21.00 mi13:25:322:35:237:248:08
8:08
#7858
35K
21.75 mi13:31:022:40:537:245:30
7:21
#7836
23M
23.00 mi13:40:442:50:357:259:42
7:45
#7827
24M
24.00 mi13:48:072:57:587:257:23
7:23
#7746
40K
24.85 mi13:54:363:04:277:256:29
7:35
#7719
25.2M
25.20 mi13:57:273:07:187:262:51
8:16
#7705
Finish
26.22 mi14:04:513:14:427:267:24
7:16
#7650
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi79039849848525(Top 32%)1256(Top 11%)1256(Top 26%)
10K6.21 mi3.10 mi8246-3431121-1371121-1378676(Top 33%)1294(Top 11%)1294(Top 26%)
15K9.32 mi3.11 mi8296-501144-231144-238525(Top 32%)1256(Top 11%)1256(Top 26%)
20K12.43 mi3.11 mi8041+2551068+761068+767428(Top 28%)913(Top 8%)913(Top 19%)
Half13.11 mi0.68 mi7978+631053+151053+156985(Top 26%)769(Top 7%)769(Top 16%)
25K15.53 mi2.42 mi8105-1271120-671120-679162(Top 34%)1627(Top 14%)1627(Top 33%)
30K18.64 mi3.11 mi7989+1161110+101110+107582(Top 28%)1141(Top 10%)1141(Top 23%)
20M20.00 mi1.36 mi7890+991095+151095+157456(Top 28%)1195(Top 10%)1195(Top 24%)
21M21.00 mi1.00 mi7858+321094+11094+18209(Top 31%)1605(Top 14%)1605(Top 33%)
35K21.75 mi0.75 mi7836+221099-51099-57513(Top 28%)1305(Top 11%)1305(Top 27%)
23M23.00 mi1.25 mi7827+91123-241123-248056(Top 30%)1600(Top 14%)1600(Top 33%)
24M24.00 mi1.00 mi7746+811115+81115+86962(Top 26%)1257(Top 11%)1257(Top 26%)
40K24.85 mi0.85 mi7719+271118-31118-37235(Top 27%)1454(Top 13%)1454(Top 30%)
25.2M25.20 mi0.35 mi7705+141124-61124-68130(Top 31%)1857(Top 16%)1857(Top 38%)
Finish26.22 mi1.02 mi7650+551127-31127-36865(Top 26%)1370(Top 12%)1370(Top 28%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 32%
×21story building
+97ft-345ft

Overall

8525

Females

1256

F18-39

1256

5K→10K

3.1 - 6.2 mi

Top 33%
×5story building
+79ft-138ft

Overall

8676

Females

1294

F18-39

1294

10K→15K

6.2 - 9.3 mi

Top 32%
×3story building
+67ft-78ft

Overall

8525

Females

1256

F18-39

1256

15K→20K

9.3 - 12.4 mi

Top 28%
×5story building
+106ft-86ft

Overall

7428

Females

913

F18-39

913

20K→Half

12.4 - 13.1 mi

Top 26%
×2story building
+19ft-37ft

Overall

6985

Females

769

F18-39

769

Half→25K

13.1 - 15.5 mi

Top 34%
×4story building
+66ft-88ft

Overall

9162

Females

1627

F18-39

1627

25K→30K

15.5 - 18.6 mi

Top 28%
×9story building
+181ft-148ft

Overall

7582

Females

1141

F18-39

1141

30K→20M

18.6 - 20.0 mi

Top 28%
×5story building
+64ft-50ft

Overall

7456

Females

1195

F18-39

1195

20M→21M

20.0 - 21.0 mi

Top 31%
×8story building
+106ft-24ft

Overall

8209

Females

1605

F18-39

1605

21M→35K

21.0 - 21.8 mi

Top 28%
×7story building
+17ft-86ft

Overall

7513

Females

1305

F18-39

1305

35K→23M

21.8 - 23.0 mi

Top 30%
×5story building
+23ft-63ft

Overall

8056

Females

1600

F18-39

1600

23M→24M

23.0 - 24.0 mi

Top 26%
×6story building
+12ft-82ft

Overall

6962

Females

1257

F18-39

1257

24M→40K

24.0 - 24.9 mi

Top 27%
×1story
+6ft-20ft

Overall

7235

Females

1454

F18-39

1454

40K→25.2M

24.9 - 25.2 mi

Top 31%
×1story
+13ft-16ft

Overall

8130

Females

1857

F18-39

1857

25.2M→Finish

25.2 - 26.2 mi

Top 26%
×2story building
+22ft-21ft

Overall

6865

Females

1370

F18-39

1370

Passing Analysis

Category:
Athletes Passed
1452
Passed By
1199
Net Change
+253
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#7903
5K → 10K95438-343#7903#8246
10K → 15K123173-50#8246#8296
15K → 20K27621+255#8296#8041
20K → Half630+63#8041#7978
Half → 25K65192-127#7978#8105
25K → 30K18973+116#8105#7989
30K → 20M12829+99#7989#7890
20M → 21M8553+32#7890#7858
21M → 35K4927+22#7858#7836
35K → 23M7768+9#7836#7827
23M → 24M10827+81#7827#7746
24M → 40K7649+27#7746#7719
40K → 25.2M3117+14#7719#7705
25.2M → Finish8732+55#7705#7650
TOTALS14521199+253
📊

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