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BOSTON MARATHON 2023

Courtney Holliday

Bib: 16790•F

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0:00
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Overall
#0 / 26622
Top 41%
Gender (Female)
#0 / 11423
Top 22%
Division (F18-39)
#0 / 4884
Top 38%
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
7:36/mi
23:36
↑ 97↓ 3451.5%
10K· 6.21 mi
7:35/mi
47:09
↑ 79↓ 1380.4%
15K· 9.32 mi
7:35/mi
1:10:44
↑ 67↓ 78
20K· 12.43 mi
7:35/mi
1:34:18
↑ 106↓ 860.1%
Half· 13.11 mi
7:29/mi
1:39:24
↑ 19↓ 370.5%
25K· 15.53 mi
7:45/mi
1:58:11
↑ 66↓ 880.2%
30K· 18.64 mi
7:55/mi
2:22:47
↑ 181↓ 1480.2%
20M
8:12/mi
2:33:56
↑ 64↓ 500.2%
21M
8:44/mi
2:42:40
↑ 106↓ 241.6%
35K· 21.75 mi
7:53/mi
2:48:34
↑ 17↓ 861.7%
23M
8:19/mi
2:58:59
↑ 23↓ 630.6%
24M
8:01/mi
3:07:00
↓ 821.3%
40K· 24.85 mi
8:12/mi
3:14:01
↓ 200.3%
25.2M
8:54/mi
3:17:05
↑ 13↓ 160.2%
Finish· 26.22 mi
8:19/mi
3:25:34
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:39:24
Pace7:35 /mi
2nd Half
Distance13.11 mi
Time1:46:10
Pace8:06 /mi
📊Positive Split: 6.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:13:3823:367:3623:36
7:36
-
10K
6.21 mi11:37:1147:097:3523:33
7:35
-0:01
15K
9.32 mi12:00:461:10:447:3523:35
7:35
0:00
20K
12.43 mi12:24:201:34:187:3523:34
7:35
0:00
Half
13.11 mi12:29:261:39:247:355:06
7:29
-0:06
25K
15.53 mi12:48:131:58:117:3618:47
7:45
+0:16
30K
18.64 mi13:12:492:22:477:4024:36
7:55
+0:10
20M
20.00 mi13:23:582:33:567:4211:09
8:12
+0:17
21M
21.00 mi13:32:422:42:407:458:44
8:44
+0:32
35K
21.75 mi13:38:362:48:347:455:54
7:53
-0:51
23M
23.00 mi13:49:012:58:597:4710:25
8:19
+0:26
24M
24.00 mi13:57:023:07:007:488:01
8:01
-0:18
40K
24.85 mi14:04:033:14:017:487:01
8:12
+0:11
25.2M
25.20 mi14:07:073:17:057:493:04
8:54
+0:42
Finish
26.22 mi14:15:363:25:347:518:29
8:19
-0:35

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

7:29 /mi

Average Pace

7:51 /mi

Slowest Pace

8:54 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:54:52

85% of race

Time at Steady Pace

27:38

13% of race

Time at Slower Pace

3:04

1% of race

Average Pace: 7:50 /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 mi11:13:3823:367:3623:36
7:36
#10524
10K
6.21 mi11:37:1147:097:3523:33
7:35
#10828
15K
9.32 mi12:00:461:10:447:3523:35
7:35
#10833
20K
12.43 mi12:24:201:34:187:3523:34
7:35
#10603
Half
13.11 mi12:29:261:39:247:355:06
7:29
#10569
25K
15.53 mi12:48:131:58:117:3618:47
7:45
#10555
30K
18.64 mi13:12:492:22:477:4024:36
7:55
#10434
20M
20.00 mi13:23:582:33:567:4211:09
8:12
#10529
21M
21.00 mi13:32:422:42:407:458:44
8:44
#10587
35K
21.75 mi13:38:362:48:347:455:54
7:53
#10583
23M
23.00 mi13:49:012:58:597:4710:25
8:19
#10649
24M
24.00 mi13:57:023:07:007:488:01
8:01
#10681
40K
24.85 mi14:04:033:14:017:487:01
8:12
#10678
25.2M
25.20 mi14:07:073:17:057:493:04
8:54
#10700
Finish
26.22 mi14:15:363:25:347:518:29
8:19
#10847
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi105242098209810947(Top 41%)2312(Top 20%)2312(Top 47%)
10K6.21 mi3.10 mi10828-3042240-1422240-14211154(Top 42%)2405(Top 21%)2405(Top 49%)
15K9.32 mi3.11 mi10833-52253-132253-1310947(Top 41%)2312(Top 20%)2312(Top 47%)
20K12.43 mi3.11 mi10603+2302127+1262127+1269994(Top 38%)1912(Top 17%)1912(Top 39%)
Half13.11 mi0.68 mi10569+342102+252102+2510115(Top 38%)1951(Top 17%)1951(Top 40%)
25K15.53 mi2.42 mi10555+142122-202122-2010692(Top 40%)2334(Top 20%)2334(Top 48%)
30K18.64 mi3.11 mi10434+1212117+52117+510291(Top 39%)2303(Top 20%)2303(Top 47%)
20M20.00 mi1.36 mi10529-952187-702187-7011740(Top 44%)3125(Top 27%)3125(Top 64%)
21M21.00 mi1.00 mi10587-582243-562243-5611884(Top 45%)3331(Top 29%)3331(Top 68%)
35K21.75 mi0.75 mi10583+42266-232266-2311319(Top 43%)3026(Top 26%)3026(Top 62%)
23M23.00 mi1.25 mi10649-662330-642330-6412046(Top 45%)3535(Top 31%)3535(Top 72%)
24M24.00 mi1.00 mi10681-322367-372367-3711371(Top 43%)3266(Top 29%)3266(Top 67%)
40K24.85 mi0.85 mi10678+32390-232390-2311415(Top 43%)3363(Top 29%)3363(Top 69%)
25.2M25.20 mi0.35 mi10700-222415-252415-2511931(Top 45%)3669(Top 32%)3669(Top 75%)
Finish26.22 mi1.02 mi10847-1472518-1032518-10314257(Top 54%)4869(Top 43%)4869(Top 100%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 41%
×21story building
+97ft-345ft

Overall

10947

Females

2312

F18-39

2312

5K→10K

3.1 - 6.2 mi

Top 42%
×5story building
+79ft-138ft

Overall

11154

Females

2405

F18-39

2405

10K→15K

6.2 - 9.3 mi

Top 41%
×3story building
+67ft-78ft

Overall

10947

Females

2312

F18-39

2312

15K→20K

9.3 - 12.4 mi

Top 38%
×5story building
+106ft-86ft

Overall

9994

Females

1912

F18-39

1912

20K→Half

12.4 - 13.1 mi

Top 38%
×2story building
+19ft-37ft

Overall

10115

Females

1951

F18-39

1951

Half→25K

13.1 - 15.5 mi

Top 40%
×4story building
+66ft-88ft

Overall

10692

Females

2334

F18-39

2334

25K→30K

15.5 - 18.6 mi

Top 39%
×9story building
+181ft-148ft

Overall

10291

Females

2303

F18-39

2303

30K→20M

18.6 - 20.0 mi

Top 44%
×5story building
+64ft-50ft

Overall

11740

Females

3125

F18-39

3125

20M→21M

20.0 - 21.0 mi

Top 45%
×8story building
+106ft-24ft

Overall

11884

Females

3331

F18-39

3331

21M→35K

21.0 - 21.8 mi

Top 43%
×7story building
+17ft-86ft

Overall

11319

Females

3026

F18-39

3026

35K→23M

21.8 - 23.0 mi

Top 45%
×5story building
+23ft-63ft

Overall

12046

Females

3535

F18-39

3535

23M→24M

23.0 - 24.0 mi

Top 43%
×6story building
+12ft-82ft

Overall

11371

Females

3266

F18-39

3266

24M→40K

24.0 - 24.9 mi

Top 43%
×1story
+6ft-20ft

Overall

11415

Females

3363

F18-39

3363

40K→25.2M

24.9 - 25.2 mi

Top 45%
×1story
+13ft-16ft

Overall

11931

Females

3669

F18-39

3669

25.2M→Finish

25.2 - 26.2 mi

Top 54%
×2story building
+22ft-21ft

Overall

14257

Females

4869

F18-39

4869

Passing Analysis

Category:
Athletes Passed
1469*
Passed By
1792
Net Change
-323
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#10524
5K → 10K169473-304#10524#10828
10K → 15K185190-5#10828#10833
15K → 20K29464+230#10833#10603
20K → Half5420+34#10603#10569
Half → 25K131117+14#10569#10555
25K → 30K227106+121#10555#10434
30K → 20M51*146-95#10434#10529
20M → 21M59117-58#10529#10587
21M → 35K5551+4#10587#10583
35K → 23M63129-66#10583#10649
23M → 24M5991-32#10649#10681
24M → 40K7067+3#10681#10678
40K → 25.2M2143-22#10678#10700
25.2M → Finish31178-147#10700#10847
TOTALS1469*1792-323

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

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