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BOSTON MARATHON 2023

Maria Lee

Bib: 23269•F

IL

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Masters (Masters Women)
#0 / 6539
Top 46%
Division (F50-54)
#0 / 1207
Top 41%
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
8:45/mi
27:11
↑ 97↓ 3451.5%
10K· 6.21 mi
8:44/mi
54:18
↑ 79↓ 1380.4%
15K· 9.32 mi
8:44/mi
1:21:26
↑ 67↓ 78
20K· 12.43 mi
8:44/mi
1:48:35
↑ 106↓ 860.1%
Half· 13.11 mi
8:36/mi
1:54:27
↑ 19↓ 370.5%
25K· 15.53 mi
8:44/mi
2:15:37
↑ 66↓ 880.2%
30K· 18.64 mi
8:57/mi
2:43:24
↑ 181↓ 1480.2%
20M
8:56/mi
2:55:33
↑ 64↓ 500.2%
21M
9:12/mi
3:04:45
↑ 106↓ 241.6%
35K· 21.75 mi
8:41/mi
3:11:15
↑ 17↓ 861.7%
23M
8:46/mi
3:22:14
↑ 23↓ 630.6%
24M
8:33/mi
3:30:47
↓ 821.3%
40K· 24.85 mi
8:44/mi
3:38:15
↓ 200.3%
25.2M
9:02/mi
3:41:22
↑ 13↓ 160.2%
Finish· 26.22 mi
8:18/mi
3:49:49
↑ 22↓ 21

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:54:27
Pace8:44 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:55:22
Pace8:48 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:22:4027:118:4527:11
8:45
-
10K
6.21 mi11:49:4754:188:4427:07
8:44
-0:01
15K
9.32 mi12:16:551:21:268:4427:08
8:44
0:00
20K
12.43 mi12:44:041:48:358:4427:09
8:44
0:00
Half
13.11 mi12:49:561:54:278:445:52
8:36
-0:08
25K
15.53 mi13:11:062:15:378:4421:10
8:44
+0:08
30K
18.64 mi13:38:532:43:248:4627:47
8:57
+0:13
20M
20.00 mi13:51:022:55:338:4712:09
8:56
-0:01
21M
21.00 mi14:00:143:04:458:489:12
9:12
+0:16
35K
21.75 mi14:06:443:11:158:486:30
8:41
-0:31
23M
23.00 mi14:17:433:22:148:4810:59
8:46
+0:05
24M
24.00 mi14:26:163:30:478:478:33
8:33
-0:13
40K
24.85 mi14:33:443:38:158:477:28
8:44
+0:11
25.2M
25.20 mi14:36:513:41:228:473:07
9:02
+0:18
Finish
26.22 mi14:45:183:49:498:468:27
8:18
-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

8:18 /mi

Average Pace

8:46 /mi

Slowest Pace

9:12 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:40:37

96% of race

Time at Steady Pace

9:12

4% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:46 /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 mi11:22:4027:118:4527:11
8:45
#19181
10K
6.21 mi11:49:4754:188:4427:07
8:44
#19344
15K
9.32 mi12:16:551:21:268:4427:08
8:44
#19251
20K
12.43 mi12:44:041:48:358:4427:09
8:44
#19007
Half
13.11 mi12:49:561:54:278:445:52
8:36
#18972
25K
15.53 mi13:11:062:15:378:4421:10
8:44
#18746
30K
18.64 mi13:38:532:43:248:4627:47
8:57
#18371
20M
20.00 mi13:51:022:55:338:4712:09
8:56
#18194
21M
21.00 mi14:00:143:04:458:489:12
9:12
#17958
35K
21.75 mi14:06:443:11:158:486:30
8:41
#17907
23M
23.00 mi14:17:433:22:148:4810:59
8:46
#17718
24M
24.00 mi14:26:163:30:478:478:33
8:33
#17600
40K
24.85 mi14:33:443:38:158:477:28
8:44
#17490
25.2M
25.20 mi14:36:513:41:228:473:07
9:02
#17419
Finish
26.22 mi14:45:183:49:498:468:27
8:18
#17301
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi191817315731519156(Top 72%)7191(Top 63%)7191(Top 596%)
10K6.21 mi3.10 mi19344-1637363-487363-4819572(Top 74%)7429(Top 65%)7429(Top 615%)
15K9.32 mi3.11 mi19251+937283+807283+8019156(Top 72%)7191(Top 63%)7191(Top 596%)
20K12.43 mi3.11 mi19007+2447127+1567127+15618356(Top 69%)6710(Top 59%)6710(Top 556%)
Half13.11 mi0.68 mi18972+357105+227105+2218341(Top 69%)6676(Top 58%)6676(Top 553%)
25K15.53 mi2.42 mi18746+2266979+1266979+12617545(Top 66%)6305(Top 55%)6305(Top 522%)
30K18.64 mi3.11 mi18371+3756783+1966783+19616890(Top 63%)6004(Top 53%)6004(Top 497%)
20M20.00 mi1.36 mi18194+1776695+886695+8816250(Top 61%)5721(Top 50%)5721(Top 474%)
21M21.00 mi1.00 mi17958+2366564+1316564+13114517(Top 55%)4780(Top 42%)4780(Top 396%)
35K21.75 mi0.75 mi17907+516541+236541+2316378(Top 62%)5927(Top 52%)5927(Top 491%)
23M23.00 mi1.25 mi17718+1896452+896452+8914859(Top 56%)5102(Top 45%)5102(Top 423%)
24M24.00 mi1.00 mi17600+1186396+566396+5614809(Top 56%)5128(Top 45%)5128(Top 425%)
40K24.85 mi0.85 mi17490+1106337+596337+5914758(Top 55%)5171(Top 45%)5171(Top 428%)
25.2M25.20 mi0.35 mi17419+716302+356302+3512861(Top 48%)4194(Top 37%)4194(Top 347%)
Finish26.22 mi1.02 mi17301+1186242+606242+6014103(Top 53%)4807(Top 42%)4807(Top 398%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 72%
×21story building
+97ft-345ft

Overall

19156

Females

7191

F50-54

7191

5K→10K

3.1 - 6.2 mi

Top 74%
×5story building
+79ft-138ft

Overall

19572

Females

7429

F50-54

7429

10K→15K

6.2 - 9.3 mi

Top 72%
×3story building
+67ft-78ft

Overall

19156

Females

7191

F50-54

7191

15K→20K

9.3 - 12.4 mi

Top 69%
×5story building
+106ft-86ft

Overall

18356

Females

6710

F50-54

6710

20K→Half

12.4 - 13.1 mi

Top 69%
×2story building
+19ft-37ft

Overall

18341

Females

6676

F50-54

6676

Half→25K

13.1 - 15.5 mi

Top 66%
×4story building
+66ft-88ft

Overall

17545

Females

6305

F50-54

6305

25K→30K

15.5 - 18.6 mi

Top 63%
×9story building
+181ft-148ft

Overall

16890

Females

6004

F50-54

6004

30K→20M

18.6 - 20.0 mi

Top 61%
×5story building
+64ft-50ft

Overall

16250

Females

5721

F50-54

5721

20M→21M

20.0 - 21.0 mi

Top 55%
×8story building
+106ft-24ft

Overall

14517

Females

4780

F50-54

4780

21M→35K

21.0 - 21.8 mi

Top 62%
×7story building
+17ft-86ft

Overall

16378

Females

5927

F50-54

5927

35K→23M

21.8 - 23.0 mi

Top 56%
×5story building
+23ft-63ft

Overall

14859

Females

5102

F50-54

5102

23M→24M

23.0 - 24.0 mi

Top 56%
×6story building
+12ft-82ft

Overall

14809

Females

5128

F50-54

5128

24M→40K

24.0 - 24.9 mi

Top 55%
×1story
+6ft-20ft

Overall

14758

Females

5171

F50-54

5171

40K→25.2M

24.9 - 25.2 mi

Top 48%
×1story
+13ft-16ft

Overall

12861

Females

4194

F50-54

4194

25.2M→Finish

25.2 - 26.2 mi

Top 53%
×2story building
+22ft-21ft

Overall

14103

Females

4807

F50-54

4807

Passing Analysis

Category:
Athletes Passed
2674
Passed By
794
Net Change
+1880
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#19181
5K → 10K264427-163#19181#19344
10K → 15K231138+93#19344#19251
15K → 20K30965+244#19251#19007
20K → Half449+35#19007#18972
Half → 25K24923+226#18972#18746
25K → 30K40833+375#18746#18371
30K → 20M19013+177#18371#18194
20M → 21M24610+236#18194#17958
21M → 35K6413+51#17958#17907
35K → 23M20617+189#17907#17718
23M → 24M13113+118#17718#17600
24M → 40K12919+110#17600#17490
40K → 25.2M732+71#17490#17419
25.2M → Finish13012+118#17419#17301
TOTALS2674794+1880
📊

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