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BOSTON MARATHON 2023

Laura Young

Bib: 13523•F

CA

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 22%
Gender (Female)
#0 / 11423
Top 5%
Division (F18-39)
#0 / 4884
Top 10%
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
7:38/mi
23:42
↑ 97↓ 3451.5%
10K· 6.21 mi
7:20/mi
46:28
↑ 79↓ 1380.4%
15K· 9.32 mi
7:19/mi
1:09:11
↑ 67↓ 78
20K· 12.43 mi
7:25/mi
1:32:13
↑ 106↓ 860.1%
Half· 13.11 mi
7:14/mi
1:37:09
↑ 19↓ 370.5%
25K· 15.53 mi
7:09/mi
1:54:28
↑ 66↓ 880.2%
30K· 18.64 mi
7:08/mi
2:16:38
↑ 181↓ 1480.2%
20M
6:59/mi
2:26:07
↑ 64↓ 500.2%
21M
7:12/mi
2:33:19
↑ 106↓ 241.6%
35K· 21.75 mi
6:18/mi
2:38:02
↑ 17↓ 861.7%
23M
6:45/mi
2:46:29
↑ 23↓ 630.6%
24M
6:27/mi
2:52:56
↓ 821.3%
40K· 24.85 mi
6:31/mi
2:58:30
↓ 200.3%
25.2M
7:06/mi
3:00:57
↑ 13↓ 160.2%
Finish· 26.22 mi
6:22/mi
3:07:26
↑ 22↓ 21

The Course

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Half Splits

1st Half· via Half
Distance13.11 mi
Time1:37:09
Pace7:25 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:30:17
Pace6:53 /mi
📊Negative Split: 7.1% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:51:5623:427:3823:42
7:38
-
10K
6.21 mi11:14:4246:287:2922:46
7:20
-0:18
15K
9.32 mi11:37:251:09:117:2522:43
7:19
-0:01
20K
12.43 mi12:00:271:32:137:2523:02
7:25
+0:06
Half
13.11 mi12:05:231:37:097:254:56
7:14
-0:11
25K
15.53 mi12:22:421:54:287:2217:19
7:09
-0:05
30K
18.64 mi12:44:522:16:387:2022:10
7:08
-0:01
20M
20.00 mi12:54:212:26:077:189:29
6:59
-0:09
21M
21.00 mi13:01:332:33:197:187:12
7:12
+0:13
35K
21.75 mi13:06:162:38:027:164:43
6:18
-0:54
23M
23.00 mi13:14:432:46:297:148:27
6:45
+0:27
24M
24.00 mi13:21:102:52:567:126:27
6:27
-0:18
40K
24.85 mi13:26:442:58:307:115:34
6:31
+0:04
25.2M
25.20 mi13:29:113:00:577:112:27
7:06
+0:35
Finish
26.22 mi13:35:403:07:267:096:29
6:22
-0:44

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

6:18 /mi

Average Pace

7:09 /mi

Slowest Pace

7:38 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

31:40

17% of race

Time at Steady Pace

1:49:02

58% of race

Time at Slower Pace

46:44

25% of race

Average Pace: 7:09 /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 mi10:51:5623:427:3823:42
7:38
#10800
10K
6.21 mi11:14:4246:287:2922:46
7:20
#9823
15K
9.32 mi11:37:251:09:117:2522:43
7:19
#9376
20K
12.43 mi12:00:271:32:137:2523:02
7:25
#9152
Half
13.11 mi12:05:231:37:097:254:56
7:14
#9098
25K
15.53 mi12:22:421:54:287:2217:19
7:09
#8584
30K
18.64 mi12:44:522:16:387:2022:10
7:08
#7857
20M
20.00 mi12:54:212:26:077:189:29
6:59
#7477
21M
21.00 mi13:01:332:33:197:187:12
7:12
#7194
35K
21.75 mi13:06:162:38:027:164:43
6:18
#6938
23M
23.00 mi13:14:432:46:297:148:27
6:45
#6635
24M
24.00 mi13:21:102:52:567:126:27
6:27
#6358
40K
24.85 mi13:26:442:58:307:115:34
6:31
#6126
25.2M
25.20 mi13:29:113:00:577:112:27
7:06
#6032
Finish
26.22 mi13:35:403:07:267:096:29
6:22
#5804
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi10800221722178670(Top 33%)1301(Top 11%)1301(Top 27%)
10K6.21 mi3.10 mi9823+9771750+4671750+4679068(Top 34%)1432(Top 13%)1432(Top 29%)
15K9.32 mi3.11 mi9376+4471567+1831567+1838670(Top 33%)1301(Top 11%)1301(Top 27%)
20K12.43 mi3.11 mi9152+2241493+741493+748622(Top 32%)1336(Top 12%)1336(Top 27%)
Half13.11 mi0.68 mi9098+541477+161477+168113(Top 30%)1119(Top 10%)1119(Top 23%)
25K15.53 mi2.42 mi8584+5141290+1871290+1876355(Top 24%)656(Top 6%)656(Top 13%)
30K18.64 mi3.11 mi7857+7271061+2291061+2295134(Top 19%)424(Top 4%)424(Top 9%)
20M20.00 mi1.36 mi7477+380946+115946+1153939(Top 15%)281(Top 2%)281(Top 6%)
21M21.00 mi1.00 mi7194+283858+88858+883150(Top 12%)208(Top 2%)208(Top 4%)
35K21.75 mi0.75 mi6938+256792+66792+661630(Top 6%)81(Top 0.7%)81(Top 2%)
23M23.00 mi1.25 mi6635+303732+60732+602410(Top 9%)146(Top 1%)146(Top 3%)
24M24.00 mi1.00 mi6358+277672+60672+601917(Top 7%)117(Top 1%)117(Top 2%)
40K24.85 mi0.85 mi6126+232624+48624+481610(Top 6%)96(Top 0.8%)96(Top 2%)
25.2M25.20 mi0.35 mi6032+94606+18606+182204(Top 8%)162(Top 1%)162(Top 3%)
Finish26.22 mi1.02 mi5804+228570+36570+361895(Top 7%)127(Top 1%)127(Top 3%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 33%
×21story building
+97ft-345ft

Overall

8670

Females

1301

F18-39

1301

5K→10K

3.1 - 6.2 mi

Top 34%
×5story building
+79ft-138ft

Overall

9068

Females

1432

F18-39

1432

10K→15K

6.2 - 9.3 mi

Top 33%
×3story building
+67ft-78ft

Overall

8670

Females

1301

F18-39

1301

15K→20K

9.3 - 12.4 mi

Top 32%
×5story building
+106ft-86ft

Overall

8622

Females

1336

F18-39

1336

20K→Half

12.4 - 13.1 mi

Top 30%
×2story building
+19ft-37ft

Overall

8113

Females

1119

F18-39

1119

Half→25K

13.1 - 15.5 mi

Top 24%
×4story building
+66ft-88ft

Overall

6355

Females

656

F18-39

656

25K→30K

15.5 - 18.6 mi

Top 19%
×9story building
+181ft-148ft

Overall

5134

Females

424

F18-39

424

30K→20M

18.6 - 20.0 mi

Top 15%
×5story building
+64ft-50ft

Overall

3939

Females

281

F18-39

281

20M→21M

20.0 - 21.0 mi

Top 12%
×8story building
+106ft-24ft

Overall

3150

Females

208

F18-39

208

21M→35K

21.0 - 21.8 mi

Top 6%
×7story building
+17ft-86ft

Overall

1630

Females

81

F18-39

81

35K→23M

21.8 - 23.0 mi

Top 9%
×5story building
+23ft-63ft

Overall

2410

Females

146

F18-39

146

23M→24M

23.0 - 24.0 mi

Top 7%
×6story building
+12ft-82ft

Overall

1917

Females

117

F18-39

117

24M→40K

24.0 - 24.9 mi

Top 6%
×1story
+6ft-20ft

Overall

1610

Females

96

F18-39

96

40K→25.2M

24.9 - 25.2 mi

Top 8%
×1story
+13ft-16ft

Overall

2204

Females

162

F18-39

162

25.2M→Finish

25.2 - 26.2 mi

Top 7%
×2story building
+22ft-21ft

Overall

1895

Females

127

F18-39

127

Passing Analysis

Category:
Athletes Passed
5105*
Passed By
109
Net Change
+4996
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#10800
5K → 10K1012*35+977#10800#9823
10K → 15K47427+447#9823#9376
15K → 20K26440+224#9376#9152
20K → Half584+54#9152#9098
Half → 25K5140+514#9098#8584
25K → 30K7281+727#8584#7857
30K → 20M3800+380#7857#7477
20M → 21M2841+283#7477#7194
21M → 35K2560+256#7194#6938
35K → 23M3030+303#6938#6635
23M → 24M2770+277#6635#6358
24M → 40K2320+232#6358#6126
40K → 25.2M940+94#6126#6032
25.2M → Finish2291+228#6032#5804
TOTALS5105*109+4996

* 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