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BOSTON MARATHON 2023

Joyce Lee

Bib: 19456•F

CA

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Top 37%
Masters (Masters Women)
#0 / 6539
Top 24%
Division (F40-44)
#0 / 1878
Top 44%
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
8:10/mi
25:22
↑ 97↓ 3451.5%
10K· 6.21 mi
7:56/mi
50:01
↑ 79↓ 1380.4%
15K· 9.32 mi
7:57/mi
1:14:42
↑ 67↓ 78
20K· 12.43 mi
8:02/mi
1:39:39
↑ 106↓ 860.1%
Half· 13.11 mi
7:52/mi
1:45:01
↑ 19↓ 370.5%
25K· 15.53 mi
8:02/mi
2:04:30
↑ 66↓ 880.2%
30K· 18.64 mi
8:24/mi
2:30:35
↑ 181↓ 1480.2%
20M
8:28/mi
2:42:06
↑ 64↓ 500.2%
21M
9:13/mi
2:51:19
↑ 106↓ 241.6%
35K· 21.75 mi
7:48/mi
2:57:09
↑ 17↓ 861.7%
23M
8:23/mi
3:07:39
↑ 23↓ 630.6%
24M
8:12/mi
3:15:51
↓ 821.3%
40K· 24.85 mi
8:58/mi
3:23:31
↓ 200.3%
25.2M
9:57/mi
3:26:57
↑ 13↓ 160.2%
Finish· 26.22 mi
9:04/mi
3:36:11
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:45:01
Pace8:01 /mi
2nd Half
Distance13.11 mi
Time1:51:10
Pace8:29 /mi
📊Positive Split: 5.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:22:3625:228:1025:22
8:10
-
10K
6.21 mi11:47:1550:018:0324:39
7:56
-0:14
15K
9.32 mi12:11:561:14:428:0124:41
7:57
+0:01
20K
12.43 mi12:36:531:39:398:0124:57
8:02
+0:05
Half
13.11 mi12:42:151:45:018:015:22
7:52
-0:10
25K
15.53 mi13:01:442:04:308:0119:29
8:02
+0:10
30K
18.64 mi13:27:492:30:358:0526:05
8:24
+0:22
20M
20.00 mi13:39:202:42:068:0611:31
8:28
+0:04
21M
21.00 mi13:48:332:51:198:099:13
9:13
+0:45
35K
21.75 mi13:54:232:57:098:095:50
7:48
-1:25
23M
23.00 mi14:04:533:07:398:1010:30
8:23
+0:35
24M
24.00 mi14:13:053:15:518:108:12
8:12
-0:11
40K
24.85 mi14:20:453:23:318:117:40
8:58
+0:46
25.2M
25.20 mi14:24:113:26:578:133:26
9:57
+0:59
Finish
26.22 mi14:33:253:36:118:159:14
9:04
-0:53

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

7:48 /mi

Average Pace

8:15 /mi

Slowest Pace

9:57 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

11:12

5% of race

Time at Steady Pace

2:55:26

81% of race

Time at Slower Pace

29:33

14% of race

Average Pace: 8:15 /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 mi11:22:3625:228:1025:22
8:10
#15195
10K
6.21 mi11:47:1550:018:0324:39
7:56
#14739
15K
9.32 mi12:11:561:14:428:0124:41
7:57
#14457
20K
12.43 mi12:36:531:39:398:0124:57
8:02
#14244
Half
13.11 mi12:42:151:45:018:015:22
7:52
#14203
25K
15.53 mi13:01:442:04:308:0119:29
8:02
#13976
30K
18.64 mi13:27:492:30:358:0526:05
8:24
#13927
20M
20.00 mi13:39:202:42:068:0611:31
8:28
#13876
21M
21.00 mi13:48:332:51:198:099:13
9:13
#13901
35K
21.75 mi13:54:232:57:098:095:50
7:48
#13771
23M
23.00 mi14:04:533:07:398:1010:30
8:23
#13655
24M
24.00 mi14:13:053:15:518:108:12
8:12
#13589
40K
24.85 mi14:20:453:23:318:117:40
8:58
#13677
25.2M
25.20 mi14:24:113:26:578:133:26
9:57
#13750
Finish
26.22 mi14:33:253:36:118:159:14
9:04
#13966
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi151954767476713970(Top 52%)4069(Top 36%)4069(Top 217%)
10K6.21 mi3.10 mi14739+4564490+2774490+27714294(Top 54%)4234(Top 37%)4234(Top 225%)
15K9.32 mi3.11 mi14457+2824331+1594331+15913970(Top 52%)4069(Top 36%)4069(Top 217%)
20K12.43 mi3.11 mi14244+2134226+1054226+10513708(Top 51%)3942(Top 35%)3942(Top 210%)
Half13.11 mi0.68 mi14203+414202+244202+2413402(Top 50%)3751(Top 33%)3751(Top 200%)
25K15.53 mi2.42 mi13976+2274094+1084094+10813054(Top 49%)3661(Top 32%)3661(Top 195%)
30K18.64 mi3.11 mi13927+494098-44098-413680(Top 51%)4142(Top 36%)4142(Top 221%)
20M20.00 mi1.36 mi13876+514087+114087+1113496(Top 51%)4125(Top 36%)4125(Top 220%)
21M21.00 mi1.00 mi13901-254118-314118-3114573(Top 55%)4803(Top 42%)4803(Top 256%)
35K21.75 mi0.75 mi13771+1304056+624056+6210722(Top 40%)2756(Top 24%)2756(Top 147%)
23M23.00 mi1.25 mi13655+1164012+444012+4412521(Top 47%)3811(Top 33%)3811(Top 203%)
24M24.00 mi1.00 mi13589+663995+173995+1712638(Top 47%)3938(Top 34%)3938(Top 210%)
40K24.85 mi0.85 mi13677-884071-764071-7615971(Top 60%)5829(Top 51%)5829(Top 310%)
25.2M25.20 mi0.35 mi13750-734124-534124-5317193(Top 65%)6519(Top 57%)6519(Top 347%)
Finish26.22 mi1.02 mi13966-2164274-1504274-15018281(Top 69%)7047(Top 62%)7047(Top 375%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 52%
×21story building
+97ft-345ft

Overall

13970

Females

4069

F40-44

4069

5K→10K

3.1 - 6.2 mi

Top 54%
×5story building
+79ft-138ft

Overall

14294

Females

4234

F40-44

4234

10K→15K

6.2 - 9.3 mi

Top 52%
×3story building
+67ft-78ft

Overall

13970

Females

4069

F40-44

4069

15K→20K

9.3 - 12.4 mi

Top 51%
×5story building
+106ft-86ft

Overall

13708

Females

3942

F40-44

3942

20K→Half

12.4 - 13.1 mi

Top 50%
×2story building
+19ft-37ft

Overall

13402

Females

3751

F40-44

3751

Half→25K

13.1 - 15.5 mi

Top 49%
×4story building
+66ft-88ft

Overall

13054

Females

3661

F40-44

3661

25K→30K

15.5 - 18.6 mi

Top 51%
×9story building
+181ft-148ft

Overall

13680

Females

4142

F40-44

4142

30K→20M

18.6 - 20.0 mi

Top 51%
×5story building
+64ft-50ft

Overall

13496

Females

4125

F40-44

4125

20M→21M

20.0 - 21.0 mi

Top 55%
×8story building
+106ft-24ft

Overall

14573

Females

4803

F40-44

4803

21M→35K

21.0 - 21.8 mi

Top 40%
×7story building
+17ft-86ft

Overall

10722

Females

2756

F40-44

2756

35K→23M

21.8 - 23.0 mi

Top 47%
×5story building
+23ft-63ft

Overall

12521

Females

3811

F40-44

3811

23M→24M

23.0 - 24.0 mi

Top 47%
×6story building
+12ft-82ft

Overall

12638

Females

3938

F40-44

3938

24M→40K

24.0 - 24.9 mi

Top 60%
×1story
+6ft-20ft

Overall

15971

Females

5829

F40-44

5829

40K→25.2M

24.9 - 25.2 mi

Top 65%
×1story
+13ft-16ft

Overall

17193

Females

6519

F40-44

6519

25.2M→Finish

25.2 - 26.2 mi

Top 69%
×2story building
+22ft-21ft

Overall

18281

Females

7047

F40-44

7047

Passing Analysis

Category:
Athletes Passed
2406
Passed By
1177
Net Change
+1229
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#15195
5K → 10K576120+456#15195#14739
10K → 15K36078+282#14739#14457
15K → 20K28673+213#14457#14244
20K → Half5110+41#14244#14203
Half → 25K26841+227#14203#13976
25K → 30K213164+49#13976#13927
30K → 20M11665+51#13927#13876
20M → 21M81106-25#13876#13901
21M → 35K1366+130#13901#13771
35K → 23M14933+116#13771#13655
23M → 24M10337+66#13655#13589
24M → 40K35123-88#13589#13677
40K → 25.2M1588-73#13677#13750
25.2M → Finish17233-216#13750#13966
TOTALS24061177+1229
📊

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