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BOSTON MARATHON 2023

Joy Burke

Bib: 21119•F

MA

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Masters (Masters Women)
#0 / 6539
Top 40%
Division (F45-49)
#0 / 1817
Top 48%
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
8:08/mi
25:15
↑ 97↓ 3451.5%
10K· 6.21 mi
7:50/mi
49:35
↑ 79↓ 1380.4%
15K· 9.32 mi
7:53/mi
1:14:03
↑ 67↓ 78
20K· 12.43 mi
8:15/mi
1:39:41
↑ 106↓ 860.1%
Half· 13.11 mi
8:21/mi
1:45:23
↑ 19↓ 370.5%
25K· 15.53 mi
8:31/mi
2:06:03
↑ 66↓ 880.2%
30K· 18.64 mi
8:42/mi
2:33:06
↑ 181↓ 1480.2%
20M
9:07/mi
2:45:29
↑ 64↓ 500.2%
21M
10:12/mi
2:55:41
↑ 106↓ 241.6%
35K· 21.75 mi
9:36/mi
3:02:52
↑ 17↓ 861.7%
23M
10:18/mi
3:15:46
↑ 23↓ 630.6%
24M
9:13/mi
3:24:59
↓ 821.3%
40K· 24.85 mi
10:14/mi
3:33:44
↓ 200.3%
25.2M
11:13/mi
3:37:36
↑ 13↓ 160.2%
Finish· 26.22 mi
8:35/mi
3:46:21
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:45:23
Pace8:02 /mi
2nd Half
Distance13.11 mi
Time2:00:58
Pace9:14 /mi
📊Positive Split: 14.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:18:4625:158:0825:15
8:08
-
10K
6.21 mi11:43:0649:357:5924:20
7:50
-0:18
15K
9.32 mi12:07:341:14:037:5724:28
7:53
+0:03
20K
12.43 mi12:33:121:39:418:0125:38
8:15
+0:22
Half
13.11 mi12:38:541:45:238:025:42
8:21
+0:06
25K
15.53 mi12:59:342:06:038:0720:40
8:31
+0:10
30K
18.64 mi13:26:372:33:068:1327:03
8:42
+0:11
20M
20.00 mi13:39:002:45:298:1612:23
9:07
+0:25
21M
21.00 mi13:49:122:55:418:2210:12
10:12
+1:05
35K
21.75 mi13:56:233:02:528:257:11
9:36
-0:36
23M
23.00 mi14:09:173:15:468:3112:54
10:18
+0:42
24M
24.00 mi14:18:303:24:598:329:13
9:13
-1:05
40K
24.85 mi14:27:153:33:448:368:45
10:14
+1:01
25.2M
25.20 mi14:31:073:37:368:383:52
11:13
+0:59
Finish
26.22 mi14:39:523:46:218:388:45
8:35
-2:38

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

7:50 /mi

Average Pace

8:38 /mi

Slowest Pace

11:13 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:14:03

33% of race

Time at Steady Pace

1:40:11

44% of race

Time at Slower Pace

52:07

23% of race

Average Pace: 8:38 /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 mi11:18:4625:158:0825:15
8:08
#14928
10K
6.21 mi11:43:0649:357:5924:20
7:50
#14253
15K
9.32 mi12:07:341:14:037:5724:28
7:53
#13942
20K
12.43 mi12:33:121:39:418:0125:38
8:15
#14269
Half
13.11 mi12:38:541:45:238:025:42
8:21
#14409
25K
15.53 mi12:59:342:06:038:0720:40
8:31
#14749
30K
18.64 mi13:26:372:33:068:1327:03
8:42
#14908
20M
20.00 mi13:39:002:45:298:1612:23
9:07
#15060
21M
21.00 mi13:49:122:55:418:2210:12
10:12
#15307
35K
21.75 mi13:56:233:02:528:257:11
9:36
#15557
23M
23.00 mi14:09:173:15:468:3112:54
10:18
#16031
24M
24.00 mi14:18:303:24:598:329:13
9:13
#16128
40K
24.85 mi14:27:153:33:448:368:45
10:14
#16380
25.2M
25.20 mi14:31:073:37:368:383:52
11:13
#16507
Finish
26.22 mi14:39:523:46:218:388:45
8:35
#16476
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi149284599459913327(Top 50%)3688(Top 32%)3688(Top 203%)
10K6.21 mi3.10 mi14253+6754202+3974202+39713432(Top 50%)3682(Top 32%)3682(Top 203%)
15K9.32 mi3.11 mi13942+3114027+1754027+17513327(Top 50%)3688(Top 32%)3688(Top 203%)
20K12.43 mi3.11 mi14269-3274238-2114238-21115294(Top 57%)4898(Top 43%)4898(Top 270%)
Half13.11 mi0.68 mi14409-1404321-834321-8316884(Top 63%)5830(Top 51%)5830(Top 321%)
25K15.53 mi2.42 mi14749-3404554-2334554-23316363(Top 61%)5651(Top 49%)5651(Top 311%)
30K18.64 mi3.11 mi14908-1594685-1314685-13115554(Top 58%)5246(Top 46%)5246(Top 289%)
20M20.00 mi1.36 mi15060-1524814-1294814-12917133(Top 64%)6242(Top 55%)6242(Top 344%)
21M21.00 mi1.00 mi15307-2475002-1885002-18818717(Top 70%)7172(Top 63%)7172(Top 395%)
35K21.75 mi0.75 mi15557-2505173-1715173-17120169(Top 76%)8026(Top 70%)8026(Top 442%)
23M23.00 mi1.25 mi16031-4745478-3055478-30520832(Top 78%)8421(Top 74%)8421(Top 463%)
24M24.00 mi1.00 mi16128-975533-555533-5518124(Top 68%)6960(Top 61%)6960(Top 383%)
40K24.85 mi0.85 mi16380-2525704-1715704-17120578(Top 77%)8363(Top 73%)8363(Top 460%)
25.2M25.20 mi0.35 mi16507-1275777-735777-7320944(Top 79%)8550(Top 75%)8550(Top 471%)
Finish26.22 mi1.02 mi16476+315773+45773+415939(Top 60%)5774(Top 51%)5774(Top 318%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 50%
×21story building
+97ft-345ft

Overall

13327

Females

3688

F45-49

3688

5K→10K

3.1 - 6.2 mi

Top 50%
×5story building
+79ft-138ft

Overall

13432

Females

3682

F45-49

3682

10K→15K

6.2 - 9.3 mi

Top 50%
×3story building
+67ft-78ft

Overall

13327

Females

3688

F45-49

3688

15K→20K

9.3 - 12.4 mi

Top 57%
×5story building
+106ft-86ft

Overall

15294

Females

4898

F45-49

4898

20K→Half

12.4 - 13.1 mi

Top 63%
×2story building
+19ft-37ft

Overall

16884

Females

5830

F45-49

5830

Half→25K

13.1 - 15.5 mi

Top 61%
×4story building
+66ft-88ft

Overall

16363

Females

5651

F45-49

5651

25K→30K

15.5 - 18.6 mi

Top 58%
×9story building
+181ft-148ft

Overall

15554

Females

5246

F45-49

5246

30K→20M

18.6 - 20.0 mi

Top 64%
×5story building
+64ft-50ft

Overall

17133

Females

6242

F45-49

6242

20M→21M

20.0 - 21.0 mi

Top 70%
×8story building
+106ft-24ft

Overall

18717

Females

7172

F45-49

7172

21M→35K

21.0 - 21.8 mi

Top 76%
×7story building
+17ft-86ft

Overall

20169

Females

8026

F45-49

8026

35K→23M

21.8 - 23.0 mi

Top 78%
×5story building
+23ft-63ft

Overall

20832

Females

8421

F45-49

8421

23M→24M

23.0 - 24.0 mi

Top 68%
×6story building
+12ft-82ft

Overall

18124

Females

6960

F45-49

6960

24M→40K

24.0 - 24.9 mi

Top 77%
×1story
+6ft-20ft

Overall

20578

Females

8363

F45-49

8363

40K→25.2M

24.9 - 25.2 mi

Top 79%
×1story
+13ft-16ft

Overall

20944

Females

8550

F45-49

8550

25.2M→Finish

25.2 - 26.2 mi

Top 60%
×2story building
+22ft-21ft

Overall

15939

Females

5774

F45-49

5774

Passing Analysis

Category:
Athletes Passed
1665
Passed By
3213
Net Change
-1548
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#14928
5K → 10K76388+675#14928#14253
10K → 15K37665+311#14253#13942
15K → 20K95422-327#13942#14269
20K → Half5145-140#14269#14409
Half → 25K66406-340#14409#14749
25K → 30K125284-159#14749#14908
30K → 20M45197-152#14908#15060
20M → 21M29276-247#15060#15307
21M → 35K9259-250#15307#15557
35K → 23M12486-474#15557#16031
23M → 24M39136-97#16031#16128
24M → 40K21273-252#16128#16380
40K → 25.2M3130-127#16380#16507
25.2M → Finish7746+31#16507#16476
TOTALS16653213-1548
📊

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