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BOSTON MARATHON 2023

Janet Lee

Bib: 23056•F

OH

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Masters (Masters Women)
#0 / 6539
Division (F50-54)
#0 / 1207
Top 49%
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
8:44/mi
27:09
↑ 97↓ 3451.5%
10K· 6.21 mi
8:40/mi
54:04
↑ 79↓ 1380.4%
15K· 9.32 mi
8:41/mi
1:21:03
↑ 67↓ 78
20K· 12.43 mi
8:48/mi
1:48:22
↑ 106↓ 860.1%
Half· 13.11 mi
8:46/mi
1:54:21
↑ 19↓ 370.5%
25K· 15.53 mi
8:47/mi
2:15:39
↑ 66↓ 880.2%
30K· 18.64 mi
9:10/mi
2:44:08
↑ 181↓ 1480.2%
20M
9:27/mi
2:56:59
↑ 64↓ 500.2%
21M
9:48/mi
3:06:47
↑ 106↓ 241.6%
35K· 21.75 mi
8:57/mi
3:13:29
↑ 17↓ 861.7%
23M
9:17/mi
3:25:06
↑ 23↓ 630.6%
24M
8:56/mi
3:34:02
↓ 821.3%
40K· 24.85 mi
8:59/mi
3:41:43
↓ 200.3%
25.2M
9:40/mi
3:45:03
↑ 13↓ 160.2%
Finish· 26.22 mi
8:25/mi
3:53:38
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:54:21
Pace8:43 /mi
2nd Half
Distance13.11 mi
Time1:59:17
Pace9:06 /mi
📊Positive Split: 4.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:23:2427:098:4427:09
8:44
-
10K
6.21 mi11:50:1954:048:4226:55
8:40
-0:04
15K
9.32 mi12:17:181:21:038:4226:59
8:41
+0:01
20K
12.43 mi12:44:371:48:228:4327:19
8:48
+0:07
Half
13.11 mi12:50:361:54:218:435:59
8:46
-0:02
25K
15.53 mi13:11:542:15:398:4421:18
8:47
+0:01
30K
18.64 mi13:40:232:44:088:4828:29
9:10
+0:23
20M
20.00 mi13:53:142:56:598:5112:51
9:27
+0:17
21M
21.00 mi14:03:023:06:478:549:48
9:48
+0:21
35K
21.75 mi14:09:443:13:298:546:42
8:57
-0:51
23M
23.00 mi14:21:213:25:068:5511:37
9:17
+0:20
24M
24.00 mi14:30:173:34:028:558:56
8:56
-0:21
40K
24.85 mi14:37:583:41:438:557:41
8:59
+0:03
25.2M
25.20 mi14:41:183:45:038:563:20
9:40
+0:41
Finish
26.22 mi14:49:533:53:388:558:35
8:25
-1:15

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

8:25 /mi

Average Pace

8:55 /mi

Slowest Pace

9:48 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:16:02

84% of race

Time at Steady Pace

37:36

16% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:55 /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 mi11:23:2427:098:4427:09
8:44
#19124
10K
6.21 mi11:50:1954:048:4226:55
8:40
#19115
15K
9.32 mi12:17:181:21:038:4226:59
8:41
#19020
20K
12.43 mi12:44:371:48:228:4327:19
8:48
#18900
Half
13.11 mi12:50:361:54:218:435:59
8:46
#18934
25K
15.53 mi13:11:542:15:398:4421:18
8:47
#18758
30K
18.64 mi13:40:232:44:088:4828:29
9:10
#18618
20M
20.00 mi13:53:142:56:598:5112:51
9:27
#18602
21M
21.00 mi14:03:023:06:478:549:48
9:48
#18518
35K
21.75 mi14:09:443:13:298:546:42
8:57
#18473
23M
23.00 mi14:21:213:25:068:5511:37
9:17
#18400
24M
24.00 mi14:30:173:34:028:558:56
8:56
#18327
40K
24.85 mi14:37:583:41:438:557:41
8:59
#18263
25.2M
25.20 mi14:41:183:45:038:563:20
9:40
#18227
Finish
26.22 mi14:49:533:53:388:558:35
8:25
#18115
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi191247278727818904(Top 71%)7044(Top 62%)7044(Top 584%)
10K6.21 mi3.10 mi19115+97225+537225+5319221(Top 72%)7212(Top 63%)7212(Top 598%)
15K9.32 mi3.11 mi19020+957145+807145+8018904(Top 71%)7044(Top 62%)7044(Top 584%)
20K12.43 mi3.11 mi18900+1207063+827063+8218635(Top 70%)6873(Top 60%)6873(Top 569%)
Half13.11 mi0.68 mi18934-347081-187081-1819352(Top 73%)7285(Top 64%)7285(Top 604%)
25K15.53 mi2.42 mi18758+1766986+956986+9517886(Top 67%)6508(Top 57%)6508(Top 539%)
30K18.64 mi3.11 mi18618+1406929+576929+5718026(Top 68%)6666(Top 58%)6666(Top 552%)
20M20.00 mi1.36 mi18602+166933-46933-418697(Top 70%)7129(Top 62%)7129(Top 591%)
21M21.00 mi1.00 mi18518+846886+476886+4717278(Top 65%)6355(Top 56%)6355(Top 527%)
35K21.75 mi0.75 mi18473+456872+146872+1417755(Top 67%)6703(Top 59%)6703(Top 555%)
23M23.00 mi1.25 mi18400+736850+226850+2217429(Top 65%)6524(Top 57%)6524(Top 541%)
24M24.00 mi1.00 mi18327+736817+336817+3316950(Top 64%)6331(Top 55%)6331(Top 525%)
40K24.85 mi0.85 mi18263+646794+236794+2316096(Top 60%)5916(Top 52%)5916(Top 490%)
25.2M25.20 mi0.35 mi18227+366775+196775+1916032(Top 60%)5896(Top 52%)5896(Top 488%)
Finish26.22 mi1.02 mi18115+1126718+576718+5714924(Top 56%)5225(Top 46%)5225(Top 433%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 71%
×21story building
+97ft-345ft

Overall

18904

Females

7044

F50-54

7044

5K→10K

3.1 - 6.2 mi

Top 72%
×5story building
+79ft-138ft

Overall

19221

Females

7212

F50-54

7212

10K→15K

6.2 - 9.3 mi

Top 71%
×3story building
+67ft-78ft

Overall

18904

Females

7044

F50-54

7044

15K→20K

9.3 - 12.4 mi

Top 70%
×5story building
+106ft-86ft

Overall

18635

Females

6873

F50-54

6873

20K→Half

12.4 - 13.1 mi

Top 73%
×2story building
+19ft-37ft

Overall

19352

Females

7285

F50-54

7285

Half→25K

13.1 - 15.5 mi

Top 67%
×4story building
+66ft-88ft

Overall

17886

Females

6508

F50-54

6508

25K→30K

15.5 - 18.6 mi

Top 68%
×9story building
+181ft-148ft

Overall

18026

Females

6666

F50-54

6666

30K→20M

18.6 - 20.0 mi

Top 70%
×5story building
+64ft-50ft

Overall

18697

Females

7129

F50-54

7129

20M→21M

20.0 - 21.0 mi

Top 65%
×8story building
+106ft-24ft

Overall

17278

Females

6355

F50-54

6355

21M→35K

21.0 - 21.8 mi

Top 67%
×7story building
+17ft-86ft

Overall

17755

Females

6703

F50-54

6703

35K→23M

21.8 - 23.0 mi

Top 65%
×5story building
+23ft-63ft

Overall

17429

Females

6524

F50-54

6524

23M→24M

23.0 - 24.0 mi

Top 64%
×6story building
+12ft-82ft

Overall

16950

Females

6331

F50-54

6331

24M→40K

24.0 - 24.9 mi

Top 60%
×1story
+6ft-20ft

Overall

16096

Females

5916

F50-54

5916

40K→25.2M

24.9 - 25.2 mi

Top 60%
×1story
+13ft-16ft

Overall

16032

Females

5896

F50-54

5896

25.2M→Finish

25.2 - 26.2 mi

Top 56%
×2story building
+22ft-21ft

Overall

14924

Females

5225

F50-54

5225

Passing Analysis

Category:
Athletes Passed
2029
Passed By
1020
Net Change
+1009
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#19124
5K → 10K352343+9#19124#19115
10K → 15K229134+95#19115#19020
15K → 20K21898+120#19020#18900
20K → Half1751-34#18900#18934
Half → 25K20832+176#18934#18758
25K → 30K244104+140#18758#18618
30K → 20M9478+16#18618#18602
20M → 21M13349+84#18602#18518
21M → 35K6823+45#18518#18473
35K → 23M11744+73#18473#18400
23M → 24M9320+73#18400#18327
24M → 40K8723+64#18327#18263
40K → 25.2M448+36#18263#18227
25.2M → Finish12513+112#18227#18115
TOTALS20291020+1009
📊

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