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BOSTON MARATHON 2023

Tilly Mclean

Bib: 27479•F

CA

0:00
0:00
/ mi
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Division (F18-39)
#0 / 4884
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
9:28/mi
29:25
↑ 97↓ 3451.5%
10K· 6.21 mi
9:06/mi
57:42
↑ 79↓ 1380.4%
15K· 9.32 mi
9:04/mi
1:25:52
↑ 67↓ 78
20K· 12.43 mi
8:57/mi
1:53:41
↑ 106↓ 860.1%
Half· 13.11 mi
8:45/mi
1:59:39
↑ 19↓ 370.5%
25K· 15.53 mi
8:59/mi
2:21:27
↑ 66↓ 880.2%
30K· 18.64 mi
9:05/mi
2:49:41
↑ 181↓ 1480.2%
20M
9:07/mi
3:02:05
↑ 64↓ 500.2%
21M
9:26/mi
3:11:31
↑ 106↓ 241.6%
35K· 21.75 mi
8:40/mi
3:18:00
↑ 17↓ 861.7%
23M
8:55/mi
3:29:10
↑ 23↓ 630.6%
24M
8:54/mi
3:38:04
↓ 821.3%
40K· 24.85 mi
8:57/mi
3:45:43
↓ 200.3%
25.2M
9:25/mi
3:48:58
↑ 13↓ 160.2%
Finish· 26.22 mi
8:22/mi
3:57:30
↑ 22↓ 21

The Course

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Half Splits

1st Half· via Half
Distance13.11 mi
Time1:59:39
Pace9:08 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:57:51
Pace8:59 /mi
📊Negative Split: 1.5% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:46:3229:259:2829:25
9:28
-
10K
6.21 mi12:14:4957:429:1728:17
9:06
-0:22
15K
9.32 mi12:42:591:25:529:1328:10
9:04
-0:02
20K
12.43 mi13:10:481:53:419:0927:49
8:57
-0:07
Half
13.11 mi13:16:461:59:399:085:58
8:45
-0:12
25K
15.53 mi13:38:342:21:279:0621:48
8:59
+0:14
30K
18.64 mi14:06:482:49:419:0628:14
9:05
+0:06
20M
20.00 mi14:19:123:02:059:0612:24
9:07
+0:02
21M
21.00 mi14:28:383:11:319:079:26
9:26
+0:19
35K
21.75 mi14:35:073:18:009:066:29
8:40
-0:46
23M
23.00 mi14:46:173:29:109:0611:10
8:55
+0:15
24M
24.00 mi14:55:113:38:049:058:54
8:54
-0:01
40K
24.85 mi15:02:503:45:439:057:39
8:57
+0:03
25.2M
25.20 mi15:06:053:48:589:053:15
9:25
+0:28
Finish
26.22 mi15:14:373:57:309:048:32
8:22
-1:03

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

8:22 /mi

Average Pace

9:04 /mi

Slowest Pace

9:28 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:15:24

82% of race

Time at Steady Pace

42:06

18% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 9:03 /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 mi11:46:3229:259:2829:25
9:28
#22000
10K
6.21 mi12:14:4957:429:1728:17
9:06
#21685
15K
9.32 mi12:42:591:25:529:1328:10
9:04
#21407
20K
12.43 mi13:10:481:53:419:0927:49
8:57
#20980
Half
13.11 mi13:16:461:59:399:085:58
8:45
#20892
25K
15.53 mi13:38:342:21:279:0621:48
8:59
#20593
30K
18.64 mi14:06:482:49:419:0628:14
9:05
#20069
20M
20.00 mi14:19:123:02:059:0612:24
9:07
#19835
21M
21.00 mi14:28:383:11:319:079:26
9:26
#19595
35K
21.75 mi14:35:073:18:009:066:29
8:40
#19487
23M
23.00 mi14:46:173:29:109:0611:10
8:55
#19267
24M
24.00 mi14:55:113:38:049:058:54
8:54
#19159
40K
24.85 mi15:02:503:45:439:057:39
8:57
#19051
25.2M
25.20 mi15:06:053:48:589:053:15
9:25
#18988
Finish
26.22 mi15:14:373:57:309:048:32
8:22
#18866
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi220008879887920795(Top 78%)8118(Top 71%)8118(Top 166%)
10K6.21 mi3.10 mi21685+3158679+2008679+20021289(Top 80%)8433(Top 74%)8433(Top 173%)
15K9.32 mi3.11 mi21407+2788502+1778502+17720795(Top 78%)8118(Top 71%)8118(Top 166%)
20K12.43 mi3.11 mi20980+4278261+2418261+24119489(Top 73%)7375(Top 65%)7375(Top 151%)
Half13.11 mi0.68 mi20892+888205+568205+5619232(Top 72%)7223(Top 63%)7223(Top 148%)
25K15.53 mi2.42 mi20593+2998033+1728033+17218919(Top 71%)7087(Top 62%)7087(Top 145%)
30K18.64 mi3.11 mi20069+5247765+2687765+26817640(Top 66%)6438(Top 56%)6438(Top 132%)
20M20.00 mi1.36 mi19835+2347641+1247641+12417218(Top 65%)6299(Top 55%)6299(Top 129%)
21M21.00 mi1.00 mi19595+2407513+1287513+12815689(Top 59%)5460(Top 48%)5460(Top 112%)
35K21.75 mi0.75 mi19487+1087455+587455+5816300(Top 61%)5885(Top 52%)5885(Top 120%)
23M23.00 mi1.25 mi19267+2207331+1247331+12415661(Top 59%)5559(Top 49%)5559(Top 114%)
24M24.00 mi1.00 mi19159+1087282+497282+4916798(Top 63%)6254(Top 55%)6254(Top 128%)
40K24.85 mi0.85 mi19051+1087229+537229+5315918(Top 60%)5816(Top 51%)5816(Top 119%)
25.2M25.20 mi0.35 mi18988+637196+337196+3314926(Top 56%)5284(Top 46%)5284(Top 108%)
Finish26.22 mi1.02 mi18866+1227134+627134+6214615(Top 55%)5066(Top 44%)5066(Top 104%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 78%
×21story building
+97ft-345ft

Overall

20795

Females

8118

F18-39

8118

5K→10K

3.1 - 6.2 mi

Top 80%
×5story building
+79ft-138ft

Overall

21289

Females

8433

F18-39

8433

10K→15K

6.2 - 9.3 mi

Top 78%
×3story building
+67ft-78ft

Overall

20795

Females

8118

F18-39

8118

15K→20K

9.3 - 12.4 mi

Top 73%
×5story building
+106ft-86ft

Overall

19489

Females

7375

F18-39

7375

20K→Half

12.4 - 13.1 mi

Top 72%
×2story building
+19ft-37ft

Overall

19232

Females

7223

F18-39

7223

Half→25K

13.1 - 15.5 mi

Top 71%
×4story building
+66ft-88ft

Overall

18919

Females

7087

F18-39

7087

25K→30K

15.5 - 18.6 mi

Top 66%
×9story building
+181ft-148ft

Overall

17640

Females

6438

F18-39

6438

30K→20M

18.6 - 20.0 mi

Top 65%
×5story building
+64ft-50ft

Overall

17218

Females

6299

F18-39

6299

20M→21M

20.0 - 21.0 mi

Top 59%
×8story building
+106ft-24ft

Overall

15689

Females

5460

F18-39

5460

21M→35K

21.0 - 21.8 mi

Top 61%
×7story building
+17ft-86ft

Overall

16300

Females

5885

F18-39

5885

35K→23M

21.8 - 23.0 mi

Top 59%
×5story building
+23ft-63ft

Overall

15661

Females

5559

F18-39

5559

23M→24M

23.0 - 24.0 mi

Top 63%
×6story building
+12ft-82ft

Overall

16798

Females

6254

F18-39

6254

24M→40K

24.0 - 24.9 mi

Top 60%
×1story
+6ft-20ft

Overall

15918

Females

5816

F18-39

5816

40K→25.2M

24.9 - 25.2 mi

Top 56%
×1story
+13ft-16ft

Overall

14926

Females

5284

F18-39

5284

25.2M→Finish

25.2 - 26.2 mi

Top 55%
×2story building
+22ft-21ft

Overall

14615

Females

5066

F18-39

5066

Passing Analysis

Category:
Athletes Passed
3400
Passed By
266
Net Change
+3134
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#22000
5K → 10K450135+315#22000#21685
10K → 15K33355+278#21685#21407
15K → 20K43912+427#21407#20980
20K → Half946+88#20980#20892
Half → 25K3078+299#20892#20593
25K → 30K5273+524#20593#20069
30K → 20M2362+234#20069#19835
20M → 21M2422+240#19835#19595
21M → 35K11810+108#19595#19487
35K → 23M2244+220#19487#19267
23M → 24M11911+108#19267#19159
24M → 40K1168+108#19159#19051
40K → 25.2M674+63#19051#18988
25.2M → Finish1286+122#18988#18866
TOTALS3400266+3134
📊

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