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BOSTON MARATHON 2023

Catherine Reen

Bib: 18348•F

VA

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 46%
Gender (Female)
#0 / 11423
Top 29%
Masters (Masters Women)
#0 / 6539
Top 15%
Division (F40-44)
#0 / 1878
Top 29%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
25:49
Rank: #16220
Start → 5K
8:19/mi
25:49 split
10K· 6.21 mi
50:44
Rank: #15579 (+641)
5K → 10K
8:01/mi
24:55 split
15K· 9.32 mi
1:15:36
Rank: #15188 (+391)
10K → 15K
8:00/mi
24:52 split
20K· 12.43 mi
1:40:37
Rank: #14839 (+349)
15K → 20K
8:03/mi
25:01 split
Half· 13.11 mi
1:46:08
Rank: #14849 (-10)
20K → Half
8:05/mi
5:31 split
25K· 15.53 mi
2:05:39
Rank: #14569 (+280)
Half → 25K
8:03/mi
19:31 split
30K· 18.64 mi
2:30:45
Rank: #13991 (+578)
25K → 30K
8:05/mi
25:06 split
20M
2:41:44
Rank: #13715 (+276)
30K → 20M
8:05/mi
10:59 split
21M
2:49:53
Rank: #13368 (+347)
20M → 21M
8:09/mi
8:09 split
35K· 21.75 mi
2:55:39
Rank: #13225 (+143)
21M → 35K
7:42/mi
5:46 split
23M
3:05:21
Rank: #12902 (+323)
35K → 23M
7:45/mi
9:42 split
24M
3:12:50
Rank: #12650 (+252)
23M → 24M
7:29/mi
7:29 split
40K· 24.85 mi
3:19:26
Rank: #12479 (+171)
24M → 40K
7:43/mi
6:36 split
25.2M
3:22:21
Rank: #12417 (+62)
40K → 25.2M
8:27/mi
2:55 split
Finish· 26.22 mi
3:30:03
Rank: #12279 (+138)
25.2M → Finish
7:33/mi
7:42 split

The Course

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Half Splits

1st Half· via Half
Distance13.11 mi
Time1:46:08
Pace8:06 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:43:55
Pace7:56 /mi
📊Negative Split: 2.1% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:17:1425:498:1925:49
8:19
-
10K
6.21 mi11:42:0950:448:1024:55
8:01
-0:18
15K
9.32 mi12:07:011:15:368:0724:52
8:00
-0:01
20K
12.43 mi12:32:021:40:378:0625:01
8:03
+0:03
Half
13.11 mi12:37:331:46:088:065:31
8:05
+0:02
25K
15.53 mi12:57:042:05:398:0519:31
8:03
-0:02
30K
18.64 mi13:22:102:30:458:0525:06
8:05
+0:02
20M
20.00 mi13:33:092:41:448:0510:59
8:05
0:00
21M
21.00 mi13:41:182:49:538:058:09
8:09
+0:04
35K
21.75 mi13:47:042:55:398:055:46
7:42
-0:27
23M
23.00 mi13:56:463:05:218:049:42
7:45
+0:03
24M
24.00 mi14:04:153:12:508:027:29
7:29
-0:16
40K
24.85 mi14:10:513:19:268:016:36
7:43
+0:14
25.2M
25.20 mi14:13:463:22:218:022:55
8:27
+0:44
Finish
26.22 mi14:21:283:30:038:017:42
7:33
-0:54

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

7:29 /mi

Average Pace

8:01 /mi

Slowest Pace

8:27 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:01:19

86% of race

Time at Steady Pace

28:44

14% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:01 /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 mi11:17:1425:498:1925:49
8:19
#16220
10K
6.21 mi11:42:0950:448:1024:55
8:01
#15579
15K
9.32 mi12:07:011:15:368:0724:52
8:00
#15188
20K
12.43 mi12:32:021:40:378:0625:01
8:03
#14839
Half
13.11 mi12:37:331:46:088:065:31
8:05
#14849
25K
15.53 mi12:57:042:05:398:0519:31
8:03
#14569
30K
18.64 mi13:22:102:30:458:0525:06
8:05
#13991
20M
20.00 mi13:33:092:41:448:0510:59
8:05
#13715
21M
21.00 mi13:41:182:49:538:058:09
8:09
#13368
35K
21.75 mi13:47:042:55:398:055:46
7:42
#13225
23M
23.00 mi13:56:463:05:218:049:42
7:45
#12902
24M
24.00 mi14:04:153:12:508:027:29
7:29
#12650
40K
24.85 mi14:10:513:19:268:016:36
7:43
#12479
25.2M
25.20 mi14:13:463:22:218:022:55
8:27
#12417
Finish
26.22 mi14:21:283:30:038:017:42
7:33
#12279
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi162205416541614420(Top 54%)4328(Top 38%)4328(Top 230%)
10K6.21 mi3.10 mi15579+6415014+4025014+40214950(Top 56%)4637(Top 41%)4637(Top 247%)
15K9.32 mi3.11 mi15188+3914774+2404774+24014420(Top 54%)4328(Top 38%)4328(Top 230%)
20K12.43 mi3.11 mi14839+3494579+1954579+19513856(Top 52%)4015(Top 35%)4015(Top 214%)
Half13.11 mi0.68 mi14849-104591-124591-1215039(Top 56%)4684(Top 41%)4684(Top 249%)
25K15.53 mi2.42 mi14569+2804448+1434448+14313147(Top 49%)3708(Top 32%)3708(Top 197%)
30K18.64 mi3.11 mi13991+5784135+3134135+31311527(Top 43%)2916(Top 26%)2916(Top 155%)
20M20.00 mi1.36 mi13715+2763986+1493986+14910924(Top 41%)2704(Top 24%)2704(Top 144%)
21M21.00 mi1.00 mi13368+3473792+1943792+1948357(Top 31%)1683(Top 15%)1683(Top 90%)
35K21.75 mi0.75 mi13225+1433726+663726+6610070(Top 38%)2408(Top 21%)2408(Top 128%)
23M23.00 mi1.25 mi12902+3233575+1513575+1518101(Top 30%)1645(Top 14%)1645(Top 88%)
24M24.00 mi1.00 mi12650+2523447+1283447+1287642(Top 29%)1547(Top 14%)1547(Top 82%)
40K24.85 mi0.85 mi12479+1713363+843363+848156(Top 31%)1820(Top 16%)1820(Top 97%)
25.2M25.20 mi0.35 mi12417+623336+273336+279353(Top 35%)2412(Top 21%)2412(Top 128%)
Finish26.22 mi1.02 mi12279+1383280+563280+569009(Top 34%)2260(Top 20%)2260(Top 120%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 54%
×21story building
+97ft-345ft

Overall

14420

Females

4328

F40-44

4328

5K→10K

3.1 - 6.2 mi

Top 56%
×5story building
+79ft-138ft

Overall

14950

Females

4637

F40-44

4637

10K→15K

6.2 - 9.3 mi

Top 54%
×3story building
+67ft-78ft

Overall

14420

Females

4328

F40-44

4328

15K→20K

9.3 - 12.4 mi

Top 52%
×5story building
+106ft-86ft

Overall

13856

Females

4015

F40-44

4015

20K→Half

12.4 - 13.1 mi

Top 56%
×2story building
+19ft-37ft

Overall

15039

Females

4684

F40-44

4684

Half→25K

13.1 - 15.5 mi

Top 49%
×4story building
+66ft-88ft

Overall

13147

Females

3708

F40-44

3708

25K→30K

15.5 - 18.6 mi

Top 43%
×9story building
+181ft-148ft

Overall

11527

Females

2916

F40-44

2916

30K→20M

18.6 - 20.0 mi

Top 41%
×5story building
+64ft-50ft

Overall

10924

Females

2704

F40-44

2704

20M→21M

20.0 - 21.0 mi

Top 31%
×8story building
+106ft-24ft

Overall

8357

Females

1683

F40-44

1683

21M→35K

21.0 - 21.8 mi

Top 38%
×7story building
+17ft-86ft

Overall

10070

Females

2408

F40-44

2408

35K→23M

21.8 - 23.0 mi

Top 30%
×5story building
+23ft-63ft

Overall

8101

Females

1645

F40-44

1645

23M→24M

23.0 - 24.0 mi

Top 29%
×6story building
+12ft-82ft

Overall

7642

Females

1547

F40-44

1547

24M→40K

24.0 - 24.9 mi

Top 31%
×1story
+6ft-20ft

Overall

8156

Females

1820

F40-44

1820

40K→25.2M

24.9 - 25.2 mi

Top 35%
×1story
+13ft-16ft

Overall

9353

Females

2412

F40-44

2412

25.2M→Finish

25.2 - 26.2 mi

Top 34%
×2story building
+22ft-21ft

Overall

9009

Females

2260

F40-44

2260

Passing Analysis

Category:
Athletes Passed
4235
Passed By
294
Net Change
+3941
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#16220
5K → 10K73695+641#16220#15579
10K → 15K43544+391#15579#15188
15K → 20K39041+349#15188#14839
20K → Half2737-10#14839#14849
Half → 25K30626+280#14849#14569
25K → 30K5868+578#14569#13991
30K → 20M2837+276#13991#13715
20M → 21M3481+347#13715#13368
21M → 35K1485+143#13368#13225
35K → 23M3241+323#13225#12902
23M → 24M2531+252#12902#12650
24M → 40K1732+171#12650#12479
40K → 25.2M675+62#12479#12417
25.2M → Finish15921+138#12417#12279
TOTALS4235294+3941
📊

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