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BOSTON MARATHON 2023

Julie Reddan

Bib: 23437•F

MN

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Masters (Masters Women)
#0 / 6539
Division (F55-59)
#0 / 815
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
9:17/mi
28:52
↑ 97↓ 3451.5%
10K· 6.21 mi
9:33/mi
58:32
↑ 79↓ 1380.4%
15K· 9.32 mi
9:57/mi
1:29:28
↑ 67↓ 78
20K· 12.43 mi
9:40/mi
1:59:29
↑ 106↓ 860.1%
Half· 13.11 mi
9:39/mi
2:06:04
↑ 19↓ 370.5%
25K· 15.53 mi
9:54/mi
2:30:04
↑ 66↓ 880.2%
30K· 18.64 mi
10:45/mi
3:03:28
↑ 181↓ 1480.2%
20M
11:33/mi
3:19:10
↑ 64↓ 500.2%
21M
12:31/mi
3:31:41
↑ 106↓ 241.6%
35K· 21.75 mi
12:27/mi
3:41:00
↑ 17↓ 861.7%
23M
11:41/mi
3:55:38
↑ 23↓ 630.6%
24M
11:36/mi
4:07:14
↓ 821.3%
40K· 24.85 mi
12:09/mi
4:17:37
↓ 200.3%
25.2M
12:57/mi
4:22:05
↑ 13↓ 160.2%
Finish· 26.22 mi
12:08/mi
4:34:27
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:06:04
Pace9:37 /mi
2nd Half
Distance13.11 mi
Time2:28:23
Pace11:19 /mi
📊Positive Split: 17.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:24:2528:529:1728:52
9:17
-
10K
6.21 mi11:54:0558:329:2529:40
9:33
+0:16
15K
9.32 mi12:25:011:29:289:3630:56
9:57
+0:24
20K
12.43 mi12:55:021:59:299:3730:01
9:40
-0:17
Half
13.11 mi13:01:372:06:049:376:35
9:39
-0:01
25K
15.53 mi13:25:372:30:049:4024:00
9:54
+0:15
30K
18.64 mi13:59:013:03:289:5133:24
10:45
+0:51
20M
20.00 mi14:14:433:19:109:5715:42
11:33
+0:48
21M
21.00 mi14:27:143:31:4110:0512:31
12:31
+0:58
35K
21.75 mi14:36:333:41:0010:109:19
12:27
-0:04
23M
23.00 mi14:51:113:55:3810:1514:38
11:41
-0:46
24M
24.00 mi15:02:474:07:1410:1811:36
11:36
-0:05
40K
24.85 mi15:13:104:17:3710:2210:23
12:09
+0:33
25.2M
25.20 mi15:17:384:22:0510:244:28
12:57
+0:48
Finish
26.22 mi15:30:004:34:2710:2912:22
12:08
-0:49

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

9:17 /mi

Average Pace

10:29 /mi

Slowest Pace

12:57 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:03:28

67% of race

Time at Steady Pace

1:04:41

24% of race

Time at Slower Pace

26:18

10% of race

Average Pace: 10:28 /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 mi11:24:2528:529:1728:52
9:17
#21514
10K
6.21 mi11:54:0558:329:2529:40
9:33
#22115
15K
9.32 mi12:25:011:29:289:3630:56
9:57
#22591
20K
12.43 mi12:55:021:59:299:3730:01
9:40
#22446
Half
13.11 mi13:01:372:06:049:376:35
9:39
#22459
25K
15.53 mi13:25:372:30:049:4024:00
9:54
#22370
30K
18.64 mi13:59:013:03:289:5133:24
10:45
#22423
20M
20.00 mi14:14:433:19:109:5715:42
11:33
#22546
21M
21.00 mi14:27:143:31:4110:0512:31
12:31
#22620
35K
21.75 mi14:36:333:41:0010:109:19
12:27
#22748
23M
23.00 mi14:51:113:55:3810:1514:38
11:41
#22807
24M
24.00 mi15:02:474:07:1410:1811:36
11:36
#22853
40K
24.85 mi15:13:104:17:3710:2210:23
12:09
#22922
25.2M
25.20 mi15:17:384:22:0510:244:28
12:57
#22928
Finish
26.22 mi15:30:004:34:2710:2912:22
12:08
#23071
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF55-59Seg. OverallSeg. FemalesSeg. F55-59
5K3.11 mi3.11 mi215148642864223431(Top 88%)9568(Top 84%)9568(Top 1174%)
10K6.21 mi3.10 mi22115-6018915-2738915-27322653(Top 85%)9174(Top 80%)9174(Top 1126%)
15K9.32 mi3.11 mi22591-4769137-2229137-22223431(Top 88%)9568(Top 84%)9568(Top 1174%)
20K12.43 mi3.11 mi22446+1459056+819056+8122045(Top 83%)8828(Top 77%)8828(Top 1083%)
Half13.11 mi0.68 mi22459-139063-79063-722545(Top 85%)9108(Top 80%)9108(Top 1118%)
25K15.53 mi2.42 mi22370+899040+239040+2321995(Top 83%)8840(Top 77%)8840(Top 1085%)
30K18.64 mi3.11 mi22423-539074-349074-3422703(Top 85%)9301(Top 81%)9301(Top 1141%)
20M20.00 mi1.36 mi22546-1239162-889162-8823604(Top 89%)9839(Top 86%)9839(Top 1207%)
21M21.00 mi1.00 mi22620-749211-499211-4923474(Top 88%)9796(Top 86%)9796(Top 1202%)
35K21.75 mi0.75 mi22748-1289285-749285-7425126(Top 94%)10716(Top 94%)10716(Top 1315%)
23M23.00 mi1.25 mi22807-599328-439328-4323560(Top 88%)9880(Top 86%)9880(Top 1212%)
24M24.00 mi1.00 mi22853-469363-359363-3524007(Top 90%)10165(Top 89%)10165(Top 1247%)
40K24.85 mi0.85 mi22922-699403-409403-4024062(Top 90%)10204(Top 89%)10204(Top 1252%)
25.2M25.20 mi0.35 mi22928-69404-19404-123912(Top 90%)10138(Top 89%)10138(Top 1244%)
Finish26.22 mi1.02 mi23071-1439481-779481-7725359(Top 95%)10848(Top 95%)10848(Top 1331%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 88%
×21story building
+97ft-345ft

Overall

23431

Females

9568

F55-59

9568

5K→10K

3.1 - 6.2 mi

Top 85%
×5story building
+79ft-138ft

Overall

22653

Females

9174

F55-59

9174

10K→15K

6.2 - 9.3 mi

Top 88%
×3story building
+67ft-78ft

Overall

23431

Females

9568

F55-59

9568

15K→20K

9.3 - 12.4 mi

Top 83%
×5story building
+106ft-86ft

Overall

22045

Females

8828

F55-59

8828

20K→Half

12.4 - 13.1 mi

Top 85%
×2story building
+19ft-37ft

Overall

22545

Females

9108

F55-59

9108

Half→25K

13.1 - 15.5 mi

Top 83%
×4story building
+66ft-88ft

Overall

21995

Females

8840

F55-59

8840

25K→30K

15.5 - 18.6 mi

Top 85%
×9story building
+181ft-148ft

Overall

22703

Females

9301

F55-59

9301

30K→20M

18.6 - 20.0 mi

Top 89%
×5story building
+64ft-50ft

Overall

23604

Females

9839

F55-59

9839

20M→21M

20.0 - 21.0 mi

Top 88%
×8story building
+106ft-24ft

Overall

23474

Females

9796

F55-59

9796

21M→35K

21.0 - 21.8 mi

Top 94%
×7story building
+17ft-86ft

Overall

25126

Females

10716

F55-59

10716

35K→23M

21.8 - 23.0 mi

Top 88%
×5story building
+23ft-63ft

Overall

23560

Females

9880

F55-59

9880

23M→24M

23.0 - 24.0 mi

Top 90%
×6story building
+12ft-82ft

Overall

24007

Females

10165

F55-59

10165

24M→40K

24.0 - 24.9 mi

Top 90%
×1story
+6ft-20ft

Overall

24062

Females

10204

F55-59

10204

40K→25.2M

24.9 - 25.2 mi

Top 90%
×1story
+13ft-16ft

Overall

23912

Females

10138

F55-59

10138

25.2M→Finish

25.2 - 26.2 mi

Top 95%
×2story building
+22ft-21ft

Overall

25359

Females

10848

F55-59

10848

Passing Analysis

Category:
Athletes Passed
739
Passed By
2296
Net Change
-1557
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#21514
5K → 10K68669-601#21514#22115
10K → 15K43519-476#22115#22591
15K → 20K20560+145#22591#22446
20K → Half1831-13#22446#22459
Half → 25K14253+89#22459#22370
25K → 30K95148-53#22370#22423
30K → 20M30153-123#22423#22546
20M → 21M30104-74#22546#22620
21M → 35K12140-128#22620#22748
35K → 23M3493-59#22748#22807
23M → 24M2167-46#22807#22853
24M → 40K1988-69#22853#22922
40K → 25.2M1117-6#22922#22928
25.2M → Finish11154-143#22928#23071
TOTALS7392296-1557
📊

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