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BOSTON MARATHON 2023

Joyce Rii

Bib: 21310•F

IL

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Top 47%
Masters (Masters Women)
#0 / 6539
Top 36%
Division (F45-49)
#0 / 1817
Top 43%
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
8:37/mi
26:46
↑ 97↓ 3451.5%
10K· 6.21 mi
8:43/mi
53:50
↑ 79↓ 1380.4%
15K· 9.32 mi
8:42/mi
1:20:52
↑ 67↓ 78
20K· 12.43 mi
8:48/mi
1:48:11
↑ 106↓ 860.1%
Half· 13.11 mi
8:40/mi
1:54:06
↑ 19↓ 370.5%
25K· 15.53 mi
8:50/mi
2:15:30
↑ 66↓ 880.2%
30K· 18.64 mi
8:37/mi
2:42:17
↑ 181↓ 1480.2%
20M
8:19/mi
2:53:35
↑ 64↓ 500.2%
21M
8:36/mi
3:02:11
↑ 106↓ 241.6%
35K· 21.75 mi
7:52/mi
3:08:04
↑ 17↓ 861.7%
23M
8:09/mi
3:18:16
↑ 23↓ 630.6%
24M
7:45/mi
3:26:01
↓ 821.3%
40K· 24.85 mi
8:12/mi
3:33:02
↓ 200.3%
25.2M
8:19/mi
3:35:54
↑ 13↓ 160.2%
Finish· 26.22 mi
7:40/mi
3:43:43
↑ 22↓ 21

The Course

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Half Splits

1st Half· via Half
Distance13.11 mi
Time1:54:06
Pace8:42 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:49:37
Pace8:22 /mi
📊Negative Split: 3.9% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:24:1726:468:3726:46
8:37
-
10K
6.21 mi11:51:2153:508:4027:04
8:43
+0:06
15K
9.32 mi12:18:231:20:528:4127:02
8:42
-0:01
20K
12.43 mi12:45:421:48:118:4227:19
8:48
+0:06
Half
13.11 mi12:51:371:54:068:425:55
8:40
-0:08
25K
15.53 mi13:13:012:15:308:4321:24
8:50
+0:10
30K
18.64 mi13:39:482:42:178:4226:47
8:37
-0:13
20M
20.00 mi13:51:062:53:358:4111:18
8:19
-0:18
21M
21.00 mi13:59:423:02:118:418:36
8:36
+0:17
35K
21.75 mi14:05:353:08:048:395:53
7:52
-0:44
23M
23.00 mi14:15:473:18:168:3710:12
8:09
+0:17
24M
24.00 mi14:23:323:26:018:357:45
7:45
-0:24
40K
24.85 mi14:30:333:33:028:347:01
8:12
+0:27
25.2M
25.20 mi14:33:253:35:548:342:52
8:19
+0:07
Finish
26.22 mi14:41:143:43:438:327:49
7:40
-0:39

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

7:40 /mi

Average Pace

8:32 /mi

Slowest Pace

8:50 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

52:50

24% of race

Time at Steady Pace

2:50:53

76% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:32 /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 mi11:24:1726:468:3726:46
8:37
#18317
10K
6.21 mi11:51:2153:508:4027:04
8:43
#18904
15K
9.32 mi12:18:231:20:528:4127:02
8:42
#18910
20K
12.43 mi12:45:421:48:118:4227:19
8:48
#18823
Half
13.11 mi12:51:371:54:068:425:55
8:40
#18809
25K
15.53 mi13:13:012:15:308:4321:24
8:50
#18698
30K
18.64 mi13:39:482:42:178:4226:47
8:37
#18011
20M
20.00 mi13:51:062:53:358:4111:18
8:19
#17601
21M
21.00 mi13:59:423:02:118:418:36
8:36
#17240
35K
21.75 mi14:05:353:08:048:395:53
7:52
#17039
23M
23.00 mi14:15:473:18:168:3710:12
8:09
#16699
24M
24.00 mi14:23:323:26:018:357:45
7:45
#16413
40K
24.85 mi14:30:333:33:028:347:01
8:12
#16204
25.2M
25.20 mi14:33:253:35:548:342:52
8:19
#16083
Finish
26.22 mi14:41:143:43:438:327:49
7:40
#15855
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi183176753675318983(Top 71%)7086(Top 62%)7086(Top 390%)
10K6.21 mi3.10 mi18904-5877080-3277080-32719491(Top 73%)7380(Top 65%)7380(Top 406%)
15K9.32 mi3.11 mi18910-67075+57075+518983(Top 71%)7086(Top 62%)7086(Top 390%)
20K12.43 mi3.11 mi18823+877013+627013+6218625(Top 70%)6863(Top 60%)6863(Top 378%)
Half13.11 mi0.68 mi18809+147009+47009+418771(Top 71%)6928(Top 61%)6928(Top 381%)
25K15.53 mi2.42 mi18698+1116949+606949+6018097(Top 68%)6599(Top 58%)6599(Top 363%)
30K18.64 mi3.11 mi18011+6876570+3796570+37915049(Top 57%)4960(Top 43%)4960(Top 273%)
20M20.00 mi1.36 mi17601+4106330+2406330+24012490(Top 47%)3583(Top 31%)3583(Top 197%)
21M21.00 mi1.00 mi17240+3616136+1946136+19411100(Top 42%)2935(Top 26%)2935(Top 162%)
35K21.75 mi0.75 mi17039+2016022+1146022+11411210(Top 42%)2997(Top 26%)2997(Top 165%)
23M23.00 mi1.25 mi16699+3405846+1765846+17610853(Top 41%)2955(Top 26%)2955(Top 163%)
24M24.00 mi1.00 mi16413+2865700+1465700+1469477(Top 36%)2338(Top 20%)2338(Top 129%)
40K24.85 mi0.85 mi16204+2095597+1035597+10311466(Top 43%)3414(Top 30%)3414(Top 188%)
25.2M25.20 mi0.35 mi16083+1215520+775520+778527(Top 32%)2078(Top 18%)2078(Top 114%)
Finish26.22 mi1.02 mi15855+2285406+1145406+1149831(Top 37%)2636(Top 23%)2636(Top 145%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 71%
×21story building
+97ft-345ft

Overall

18983

Females

7086

F45-49

7086

5K→10K

3.1 - 6.2 mi

Top 73%
×5story building
+79ft-138ft

Overall

19491

Females

7380

F45-49

7380

10K→15K

6.2 - 9.3 mi

Top 71%
×3story building
+67ft-78ft

Overall

18983

Females

7086

F45-49

7086

15K→20K

9.3 - 12.4 mi

Top 70%
×5story building
+106ft-86ft

Overall

18625

Females

6863

F45-49

6863

20K→Half

12.4 - 13.1 mi

Top 71%
×2story building
+19ft-37ft

Overall

18771

Females

6928

F45-49

6928

Half→25K

13.1 - 15.5 mi

Top 68%
×4story building
+66ft-88ft

Overall

18097

Females

6599

F45-49

6599

25K→30K

15.5 - 18.6 mi

Top 57%
×9story building
+181ft-148ft

Overall

15049

Females

4960

F45-49

4960

30K→20M

18.6 - 20.0 mi

Top 47%
×5story building
+64ft-50ft

Overall

12490

Females

3583

F45-49

3583

20M→21M

20.0 - 21.0 mi

Top 42%
×8story building
+106ft-24ft

Overall

11100

Females

2935

F45-49

2935

21M→35K

21.0 - 21.8 mi

Top 42%
×7story building
+17ft-86ft

Overall

11210

Females

2997

F45-49

2997

35K→23M

21.8 - 23.0 mi

Top 41%
×5story building
+23ft-63ft

Overall

10853

Females

2955

F45-49

2955

23M→24M

23.0 - 24.0 mi

Top 36%
×6story building
+12ft-82ft

Overall

9477

Females

2338

F45-49

2338

24M→40K

24.0 - 24.9 mi

Top 43%
×1story
+6ft-20ft

Overall

11466

Females

3414

F45-49

3414

40K→25.2M

24.9 - 25.2 mi

Top 32%
×1story
+13ft-16ft

Overall

8527

Females

2078

F45-49

2078

25.2M→Finish

25.2 - 26.2 mi

Top 37%
×2story building
+22ft-21ft

Overall

9831

Females

2636

F45-49

2636

Passing Analysis

Category:
Athletes Passed
3575
Passed By
1113
Net Change
+2462
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#18317
5K → 10K121708-587#18317#18904
10K → 15K178184-6#18904#18910
15K → 20K212125+87#18910#18823
20K → Half3218+14#18823#18809
Half → 25K17362+111#18809#18698
25K → 30K6947+687#18698#18011
30K → 20M4100+410#18011#17601
20M → 21M3610+361#17601#17240
21M → 35K2021+201#17240#17039
35K → 23M3411+340#17039#16699
23M → 24M2871+286#16699#16413
24M → 40K2101+209#16413#16204
40K → 25.2M1210+121#16204#16083
25.2M → Finish2335+228#16083#15855
TOTALS35751113+2462
📊

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