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BOSTON MARATHON 2023

Stephanie Rafferty

Bib: 22713•F

FL

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Masters (Masters Women)
#0 / 6539
Top 41%
Division (F50-54)
#0 / 1207
Top 33%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
26:37
Rank: #18025
Start → 5K
26:37 | 8:34/mi
10K· 6.21 mi
52:25
Rank: #17445 (+580)
5K → 10K
25:48 | 8:18/mi
15K· 9.32 mi
1:18:15
Rank: #17171 (+274)
10K → 15K
25:50 | 8:19/mi
20K· 12.43 mi
1:45:15
Rank: #17373 (-202)
15K → 20K
27:00 | 8:41/mi
Half· 13.11 mi
1:50:55
Rank: #17333 (+40)
20K → Half
5:40 | 8:18/mi
25K· 15.53 mi
2:11:22
Rank: #17072 (+261)
Half → 25K
20:27 | 8:26/mi
30K· 18.64 mi
2:38:45
Rank: #16864 (+208)
25K → 30K
27:23 | 8:49/mi
20M
2:50:26
Rank: #16674 (+190)
30K → 20M
11:41 | 8:36/mi
21M
2:59:57
Rank: #16611 (+63)
20M → 21M
9:31 | 9:31/mi
35K· 21.75 mi
3:06:25
Rank: #16594 (+17)
21M → 35K
6:28 | 8:39/mi
23M
3:17:26
Rank: #16486 (+108)
35K → 23M
11:01 | 8:48/mi
24M
3:26:26
Rank: #16523 (-37)
23M → 24M
9:00 | 9:00/mi
40K· 24.85 mi
3:34:00
Rank: #16459 (+64)
24M → 40K
7:34 | 8:51/mi
25.2M
3:37:41
Rank: #16537 (-78)
40K → 25.2M
3:41 | 10:41/mi
Finish· 26.22 mi
3:46:35
Rank: #16524 (+13)
25.2M → Finish
8:54 | 8:44/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:50:55
Pace8:28 /mi
2nd Half
Distance13.11 mi
Time1:55:40
Pace8:49 /mi
📊Positive Split: 4.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:21:5226:378:3426:37
8:34
-
10K
6.21 mi11:47:4052:258:2625:48
8:18
-0:16
15K
9.32 mi12:13:301:18:158:2425:50
8:19
+0:01
20K
12.43 mi12:40:301:45:158:2827:00
8:41
+0:22
Half
13.11 mi12:46:101:50:558:285:40
8:18
-0:23
25K
15.53 mi13:06:372:11:228:2720:27
8:26
+0:08
30K
18.64 mi13:34:002:38:458:3127:23
8:49
+0:23
20M
20.00 mi13:45:412:50:268:3111:41
8:36
-0:13
21M
21.00 mi13:55:122:59:578:349:31
9:31
+0:55
35K
21.75 mi14:01:403:06:258:346:28
8:39
-0:52
23M
23.00 mi14:12:413:17:268:3511:01
8:48
+0:09
24M
24.00 mi14:21:413:26:268:369:00
9:00
+0:12
40K
24.85 mi14:29:153:34:008:377:34
8:51
-0:09
25.2M
25.20 mi14:32:563:37:418:383:41
10:41
+1:50
Finish
26.22 mi14:41:503:46:358:398:54
8:44
-1:57

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

8:18 /mi

Average Pace

8:39 /mi

Slowest Pace

10:41 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

57:18

25% of race

Time at Steady Pace

2:27:05

65% of race

Time at Slower Pace

22:12

10% 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 mi11:21:5226:378:3426:37
8:34
#18025
10K
6.21 mi11:47:4052:258:2625:48
8:18
#17445
15K
9.32 mi12:13:301:18:158:2425:50
8:19
#17171
20K
12.43 mi12:40:301:45:158:2827:00
8:41
#17373
Half
13.11 mi12:46:101:50:558:285:40
8:18
#17333
25K
15.53 mi13:06:372:11:228:2720:27
8:26
#17072
30K
18.64 mi13:34:002:38:458:3127:23
8:49
#16864
20M
20.00 mi13:45:412:50:268:3111:41
8:36
#16674
21M
21.00 mi13:55:122:59:578:349:31
9:31
#16611
35K
21.75 mi14:01:403:06:258:346:28
8:39
#16594
23M
23.00 mi14:12:413:17:268:3511:01
8:48
#16486
24M
24.00 mi14:21:413:26:268:369:00
9:00
#16523
40K
24.85 mi14:29:153:34:008:377:34
8:51
#16459
25.2M
25.20 mi14:32:563:37:418:383:41
10:41
#16537
Finish
26.22 mi14:41:503:46:358:398:54
8:44
#16524
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi180256572657216649(Top 63%)5700(Top 50%)5700(Top 472%)
10K6.21 mi3.10 mi17445+5806192+3806192+38016965(Top 64%)5855(Top 51%)5855(Top 485%)
15K9.32 mi3.11 mi17171+2746013+1796013+17916649(Top 63%)5700(Top 50%)5700(Top 472%)
20K12.43 mi3.11 mi17373-2026143-1306143-13018061(Top 68%)6540(Top 57%)6540(Top 542%)
Half13.11 mi0.68 mi17333+406123+206123+2016564(Top 62%)5647(Top 49%)5647(Top 468%)
25K15.53 mi2.42 mi17072+2615988+1355988+13515825(Top 59%)5335(Top 47%)5335(Top 442%)
30K18.64 mi3.11 mi16864+2085877+1115877+11116175(Top 61%)5599(Top 49%)5599(Top 464%)
20M20.00 mi1.36 mi16674+1905795+825795+8214284(Top 54%)4596(Top 40%)4596(Top 381%)
21M21.00 mi1.00 mi16611+635766+295766+2916059(Top 60%)5666(Top 50%)5666(Top 469%)
35K21.75 mi0.75 mi16594+175770-45770-416133(Top 61%)5772(Top 51%)5772(Top 478%)
23M23.00 mi1.25 mi16486+1085724+465724+4615013(Top 56%)5184(Top 45%)5184(Top 429%)
24M24.00 mi1.00 mi16523-375761-375761-3717246(Top 65%)6484(Top 57%)6484(Top 537%)
40K24.85 mi0.85 mi16459+645751+105751+1015391(Top 58%)5523(Top 48%)5523(Top 458%)
25.2M25.20 mi0.35 mi16537-785795-445795-4419656(Top 74%)7864(Top 69%)7864(Top 652%)
Finish26.22 mi1.02 mi16524+135798-35798-316686(Top 63%)6199(Top 54%)6199(Top 514%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 63%
×21stories
+97ft-345ft

Overall

16649

Females

5700

F50-54

5700

5K→10K

3.1 - 6.2 mi

Top 64%
×5stories
+79ft-138ft

Overall

16965

Females

5855

F50-54

5855

10K→15K

6.2 - 9.3 mi

Top 63%
×3stories
+67ft-78ft

Overall

16649

Females

5700

F50-54

5700

15K→20K

9.3 - 12.4 mi

Top 68%
×5stories
+106ft-86ft

Overall

18061

Females

6540

F50-54

6540

20K→Half

12.4 - 13.1 mi

Top 62%
×2stories
+19ft-37ft

Overall

16564

Females

5647

F50-54

5647

Half→25K

13.1 - 15.5 mi

Top 59%
×4stories
+66ft-88ft

Overall

15825

Females

5335

F50-54

5335

25K→30K

15.5 - 18.6 mi

Top 61%
×9stories
+181ft-148ft

Overall

16175

Females

5599

F50-54

5599

30K→20M

18.6 - 20.0 mi

Top 54%
×5stories
+64ft-50ft

Overall

14284

Females

4596

F50-54

4596

20M→21M

20.0 - 21.0 mi

Top 60%
×8stories
+106ft-24ft

Overall

16059

Females

5666

F50-54

5666

21M→35K

21.0 - 21.8 mi

Top 61%
×7stories
+17ft-86ft

Overall

16133

Females

5772

F50-54

5772

35K→23M

21.8 - 23.0 mi

Top 56%
×5stories
+23ft-63ft

Overall

15013

Females

5184

F50-54

5184

23M→24M

23.0 - 24.0 mi

Top 65%
×6stories
+12ft-82ft

Overall

17246

Females

6484

F50-54

6484

24M→40K

24.0 - 24.9 mi

Top 58%
×1story
+6ft-20ft

Overall

15391

Females

5523

F50-54

5523

40K→25.2M

24.9 - 25.2 mi

Top 74%
×1story
+13ft-16ft

Overall

19656

Females

7864

F50-54

7864

25.2M→Finish

25.2 - 26.2 mi

Top 63%
×2stories
+22ft-21ft

Overall

16686

Females

6199

F50-54

6199

Passing Analysis

Category:
Athletes Passed
2505
Passed By
1004
Net Change
+1501
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#18025
5K → 10K712132+580#18025#17445
10K → 15K35783+274#17445#17171
15K → 20K107309-202#17171#17373
20K → Half5111+40#17373#17333
Half → 25K27817+261#17333#17072
25K → 30K27264+208#17072#16864
30K → 20M20111+190#16864#16674
20M → 21M12057+63#16674#16611
21M → 35K5841+17#16611#16594
35K → 23M13628+108#16594#16486
23M → 24M4582-37#16486#16523
24M → 40K10238+64#16523#16459
40K → 25.2M684-78#16459#16537
25.2M → Finish6047+13#16537#16524
TOTALS25051004+1501
📊

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