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BOSTON MARATHON 2023

Cynthia Amy Radcliff

Bib: 20784•F

TN

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Top 41%
Masters (Masters Women)
#0 / 6539
Top 28%
Division (F60-64)
#0 / 527
Top 6%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
24:17
Rank: #12530
Start → 5K
24:17 | 7:49/mi
10K· 6.21 mi
48:33
Rank: #12834 (-304)
5K → 10K
24:16 | 7:49/mi
15K· 9.32 mi
1:12:54
Rank: #12896 (-62)
10K → 15K
24:21 | 7:50/mi
20K· 12.43 mi
1:37:44
Rank: #12993 (-97)
15K → 20K
24:50 | 8:00/mi
Half· 13.11 mi
1:43:09
Rank: #13030 (-37)
20K → Half
5:25 | 7:56/mi
25K· 15.53 mi
2:04:24
Rank: #13934 (-904)
Half → 25K
21:15 | 8:46/mi
30K· 18.64 mi
2:30:20
Rank: #13810 (+124)
25K → 30K
25:56 | 8:21/mi
20M
2:42:11
Rank: #13907 (-97)
30K → 20M
11:51 | 8:43/mi
21M
2:51:58
Rank: #14129 (-222)
20M → 21M
9:47 | 9:47/mi
35K· 21.75 mi
2:58:11
Rank: #14117 (+12)
21M → 35K
6:13 | 8:19/mi
23M
3:09:33
Rank: #14269 (-152)
35K → 23M
11:22 | 9:05/mi
24M
3:18:21
Rank: #14349 (-80)
23M → 24M
8:48 | 8:48/mi
40K· 24.85 mi
3:26:03
Rank: #14415 (-66)
24M → 40K
7:42 | 9:00/mi
25.2M
3:29:28
Rank: #14460 (-45)
40K → 25.2M
3:25 | 9:54/mi
Finish· 26.22 mi
3:38:41
Rank: #14609 (-149)
25.2M → Finish
9:13 | 9:03/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:43:09
Pace7:52 /mi
2nd Half
Distance13.11 mi
Time1:55:32
Pace8:49 /mi
📊Positive Split: 12.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:16:2524:177:4924:17
7:49
-
10K
6.21 mi11:40:4148:337:4924:16
7:49
0:00
15K
9.32 mi12:05:021:12:547:4924:21
7:50
+0:01
20K
12.43 mi12:29:521:37:447:5224:50
8:00
+0:10
Half
13.11 mi12:35:171:43:097:525:25
7:56
-0:04
25K
15.53 mi12:56:322:04:248:0021:15
8:46
+0:50
30K
18.64 mi13:22:282:30:208:0425:56
8:21
-0:25
20M
20.00 mi13:34:192:42:118:0711:51
8:43
+0:22
21M
21.00 mi13:44:062:51:588:119:47
9:47
+1:04
35K
21.75 mi13:50:192:58:118:126:13
8:19
-1:28
23M
23.00 mi14:01:413:09:338:1411:22
9:05
+0:46
24M
24.00 mi14:10:293:18:218:168:48
8:48
-0:17
40K
24.85 mi14:18:113:26:038:177:42
9:00
+0:12
25.2M
25.20 mi14:21:363:29:288:193:25
9:54
+0:54
Finish
26.22 mi14:30:493:38:418:219:13
9:03
-0:51

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

7:49 /mi

Average Pace

8:21 /mi

Slowest Pace

9:54 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:15:18

62% of race

Time at Steady Pace

49:36

23% of race

Time at Slower Pace

33:47

15% of race

Average Pace: 8:20 /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 mi11:16:2524:177:4924:17
7:49
#12530
10K
6.21 mi11:40:4148:337:4924:16
7:49
#12834
15K
9.32 mi12:05:021:12:547:4924:21
7:50
#12896
20K
12.43 mi12:29:521:37:447:5224:50
8:00
#12993
Half
13.11 mi12:35:171:43:097:525:25
7:56
#13030
25K
15.53 mi12:56:322:04:248:0021:15
8:46
#13934
30K
18.64 mi13:22:282:30:208:0425:56
8:21
#13810
20M
20.00 mi13:34:192:42:118:0711:51
8:43
#13907
21M
21.00 mi13:44:062:51:588:119:47
9:47
#14129
35K
21.75 mi13:50:192:58:118:126:13
8:19
#14117
23M
23.00 mi14:01:413:09:338:1411:22
9:05
#14269
24M
24.00 mi14:10:293:18:218:168:48
8:48
#14349
40K
24.85 mi14:18:113:26:038:177:42
9:00
#14415
25.2M
25.20 mi14:21:363:29:288:193:25
9:54
#14460
Finish
26.22 mi14:30:493:38:418:219:13
9:03
#14609
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF60-64Seg. OverallSeg. FemalesSeg. F60-64
5K3.11 mi3.11 mi125303183318313051(Top 49%)3510(Top 31%)3510(Top 666%)
10K6.21 mi3.10 mi12834-3043340-1573340-15713238(Top 50%)3578(Top 31%)3578(Top 679%)
15K9.32 mi3.11 mi12896-623398-583398-5813051(Top 49%)3510(Top 31%)3510(Top 666%)
20K12.43 mi3.11 mi12993-973483-853483-8513385(Top 50%)3757(Top 33%)3757(Top 713%)
Half13.11 mi0.68 mi13030-373504-213504-2113971(Top 52%)4080(Top 36%)4080(Top 774%)
25K15.53 mi2.42 mi13934-9044073-5694073-56917750(Top 67%)6424(Top 56%)6424(Top 1219%)
30K18.64 mi3.11 mi13810+1244022+514022+5113339(Top 50%)3944(Top 35%)3944(Top 748%)
20M20.00 mi1.36 mi13907-974104-824104-8214993(Top 56%)4982(Top 44%)4982(Top 945%)
21M21.00 mi1.00 mi14129-2224268-1644268-16417199(Top 65%)6299(Top 55%)6299(Top 1195%)
35K21.75 mi0.75 mi14117+124276-84276-814181(Top 53%)4661(Top 41%)4661(Top 884%)
23M23.00 mi1.25 mi14269-1524395-1194395-11916445(Top 62%)5989(Top 52%)5989(Top 1136%)
24M24.00 mi1.00 mi14349-804458-634458-6316197(Top 61%)5910(Top 52%)5910(Top 1121%)
40K24.85 mi0.85 mi14415-664527-694527-6916186(Top 61%)5957(Top 52%)5957(Top 1130%)
25.2M25.20 mi0.35 mi14460-454560-334560-3317027(Top 64%)6419(Top 56%)6419(Top 1218%)
Finish26.22 mi1.02 mi14609-1494668-1084668-10818187(Top 68%)6994(Top 61%)6994(Top 1327%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 49%
×21stories
+97ft-345ft

Overall

13051

Females

3510

F60-64

3510

5K→10K

3.1 - 6.2 mi

Top 50%
×5stories
+79ft-138ft

Overall

13238

Females

3578

F60-64

3578

10K→15K

6.2 - 9.3 mi

Top 49%
×3stories
+67ft-78ft

Overall

13051

Females

3510

F60-64

3510

15K→20K

9.3 - 12.4 mi

Top 50%
×5stories
+106ft-86ft

Overall

13385

Females

3757

F60-64

3757

20K→Half

12.4 - 13.1 mi

Top 52%
×2stories
+19ft-37ft

Overall

13971

Females

4080

F60-64

4080

Half→25K

13.1 - 15.5 mi

Top 67%
×4stories
+66ft-88ft

Overall

17750

Females

6424

F60-64

6424

25K→30K

15.5 - 18.6 mi

Top 50%
×9stories
+181ft-148ft

Overall

13339

Females

3944

F60-64

3944

30K→20M

18.6 - 20.0 mi

Top 56%
×5stories
+64ft-50ft

Overall

14993

Females

4982

F60-64

4982

20M→21M

20.0 - 21.0 mi

Top 65%
×8stories
+106ft-24ft

Overall

17199

Females

6299

F60-64

6299

21M→35K

21.0 - 21.8 mi

Top 53%
×7stories
+17ft-86ft

Overall

14181

Females

4661

F60-64

4661

35K→23M

21.8 - 23.0 mi

Top 62%
×5stories
+23ft-63ft

Overall

16445

Females

5989

F60-64

5989

23M→24M

23.0 - 24.0 mi

Top 61%
×6stories
+12ft-82ft

Overall

16197

Females

5910

F60-64

5910

24M→40K

24.0 - 24.9 mi

Top 61%
×1story
+6ft-20ft

Overall

16186

Females

5957

F60-64

5957

40K→25.2M

24.9 - 25.2 mi

Top 64%
×1story
+13ft-16ft

Overall

17027

Females

6419

F60-64

6419

25.2M→Finish

25.2 - 26.2 mi

Top 68%
×2stories
+22ft-21ft

Overall

18187

Females

6994

F60-64

6994

Passing Analysis

Category:
Athletes Passed
1116
Passed By
3195
Net Change
-2079
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#12530
5K → 10K170474-304#12530#12834
10K → 15K178240-62#12834#12896
15K → 20K164261-97#12896#12993
20K → Half1956-37#12993#13030
Half → 25K21925-904#13030#13934
25K → 30K240116+124#13934#13810
30K → 20M67164-97#13810#13907
20M → 21M32254-222#13907#14129
21M → 35K5038+12#14129#14117
35K → 23M47199-152#14117#14269
23M → 24M52132-80#14269#14349
24M → 40K3399-66#14349#14415
40K → 25.2M1762-45#14415#14460
25.2M → Finish26175-149#14460#14609
TOTALS11163195-2079
📊

Passing Visuals

Category:
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🔥Passing Intensity

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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