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BOSTON MARATHON 2023

Sylvia Bedford

Bib: 155•F

UT

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 6%
Gender (Female)
#0 / 11423
Top 0.6%
Division (F18-39)
#0 / 4884
Top 1%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
18:18
Rank: #519
Start → 5K
18:18 | 5:53/mi
10K· 6.21 mi
36:26
Rank: #497 (+22)
5K → 10K
18:08 | 5:50/mi
15K· 9.32 mi
54:44
Rank: #492 (+5)
10K → 15K
18:18 | 5:53/mi
20K· 12.43 mi
1:13:51
Rank: #562 (-70)
15K → 20K
19:07 | 6:09/mi
Half· 13.11 mi
1:18:05
Rank: #589 (-27)
20K → Half
4:14 | 6:12/mi
25K· 15.53 mi
1:33:31
Rank: #687 (-98)
Half → 25K
15:26 | 6:22/mi
30K· 18.64 mi
1:54:22
Rank: #864 (-177)
25K → 30K
20:51 | 6:43/mi
20M
2:03:33
Rank: #923 (-59)
30K → 20M
9:11 | 6:45/mi
21M
2:11:13
Rank: #1036 (-113)
20M → 21M
7:40 | 7:40/mi
35K· 21.75 mi
2:16:18
Rank: #1086 (-50)
21M → 35K
5:05 | 6:48/mi
23M
2:25:47
Rank: #1293 (-207)
35K → 23M
9:29 | 7:34/mi
24M
2:32:38
Rank: #1355 (-62)
23M → 24M
6:51 | 6:51/mi
40K· 24.85 mi
2:38:52
Rank: #1445 (-90)
24M → 40K
6:14 | 7:17/mi
25.2M
2:41:34
Rank: #1496 (-51)
40K → 25.2M
2:42 | 7:50/mi
Finish· 26.22 mi
2:48:54
Rank: #1592 (-96)
25.2M → Finish
7:20 | 7:12/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:18:05
Pace5:57 /mi
2nd Half
Distance13.11 mi
Time1:30:49
Pace6:56 /mi
📊Positive Split: 16.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:05:1818:185:5318:18
5:53
-
10K
6.21 mi10:23:2636:265:5218:08
5:50
-0:03
15K
9.32 mi10:41:4454:445:5218:18
5:53
+0:03
20K
12.43 mi11:00:511:13:515:5719:07
6:09
+0:16
Half
13.11 mi11:05:051:18:055:574:14
6:12
+0:03
25K
15.53 mi11:20:311:33:316:0115:26
6:22
+0:10
30K
18.64 mi11:41:221:54:226:0820:51
6:43
+0:21
20M
20.00 mi11:50:332:03:336:119:11
6:45
+0:02
21M
21.00 mi11:58:132:11:136:157:40
7:40
+0:55
35K
21.75 mi12:03:182:16:186:165:05
6:48
-0:52
23M
23.00 mi12:12:472:25:476:209:29
7:34
+0:46
24M
24.00 mi12:19:382:32:386:226:51
6:51
-0:43
40K
24.85 mi12:25:522:38:526:246:14
7:17
+0:26
25.2M
25.20 mi12:28:342:41:346:252:42
7:50
+0:33
Finish
26.22 mi12:35:542:48:546:277:20
7:12
-0:38

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

5:50 /mi

Average Pace

6:27 /mi

Slowest Pace

7:50 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:33:31

55% of race

Time at Steady Pace

41:58

25% of race

Time at Slower Pace

33:25

20% of race

Average Pace: 6:26 /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 mi10:05:1818:185:5318:18
5:53
#519
10K
6.21 mi10:23:2636:265:5218:08
5:50
#497
15K
9.32 mi10:41:4454:445:5218:18
5:53
#492
20K
12.43 mi11:00:511:13:515:5719:07
6:09
#562
Half
13.11 mi11:05:051:18:055:574:14
6:12
#589
25K
15.53 mi11:20:311:33:316:0115:26
6:22
#687
30K
18.64 mi11:41:221:54:226:0820:51
6:43
#864
20M
20.00 mi11:50:332:03:336:119:11
6:45
#923
21M
21.00 mi11:58:132:11:136:157:40
7:40
#1036
35K
21.75 mi12:03:182:16:186:165:05
6:48
#1086
23M
23.00 mi12:12:472:25:476:209:29
7:34
#1293
24M
24.00 mi12:19:382:32:386:226:51
6:51
#1355
40K
24.85 mi12:25:522:38:526:246:14
7:17
#1445
25.2M
25.20 mi12:28:342:41:346:252:42
7:50
#1496
Finish
26.22 mi12:35:542:48:546:277:20
7:12
#1592
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi5194141498(Top 2%)40(Top 0.4%)40(Top 0.8%)
10K6.21 mi3.10 mi497+2239+239+2489(Top 2%)37(Top 0.3%)37(Top 0.8%)
15K9.32 mi3.11 mi492+53939498(Top 2%)40(Top 0.4%)40(Top 0.8%)
20K12.43 mi3.11 mi562-7042-342-3922(Top 3%)46(Top 0.4%)46(Top 0.9%)
Half13.11 mi0.68 mi589-2742421436(Top 5%)59(Top 0.5%)59(Top 1%)
25K15.53 mi2.42 mi687-9841+141+11596(Top 6%)65(Top 0.6%)65(Top 1%)
30K18.64 mi3.11 mi864-17746-546-52471(Top 9%)117(Top 1%)117(Top 2%)
20M20.00 mi1.36 mi923-5947-147-12599(Top 10%)131(Top 1%)131(Top 3%)
21M21.00 mi1.00 mi1036-11350-350-35463(Top 21%)645(Top 6%)645(Top 13%)
35K21.75 mi0.75 mi1086-5052-252-24209(Top 16%)348(Top 3%)348(Top 7%)
23M23.00 mi1.25 mi1293-20758-658-66919(Top 26%)1131(Top 10%)1131(Top 23%)
24M24.00 mi1.00 mi1355-6263-563-53959(Top 15%)339(Top 3%)339(Top 7%)
40K24.85 mi0.85 mi1445-9066-366-35414(Top 20%)769(Top 7%)769(Top 16%)
25.2M25.20 mi0.35 mi1496-5168-268-25586(Top 21%)899(Top 8%)899(Top 18%)
Finish26.22 mi1.02 mi1592-9670-270-26409(Top 24%)1187(Top 10%)1187(Top 24%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 2%
×21stories
+97ft-345ft

Overall

498

Females

40

F18-39

40

5K→10K

3.1 - 6.2 mi

Top 2%
×5stories
+79ft-138ft

Overall

489

Females

37

F18-39

37

10K→15K

6.2 - 9.3 mi

Top 2%
×3stories
+67ft-78ft

Overall

498

Females

40

F18-39

40

15K→20K

9.3 - 12.4 mi

Top 3%
×5stories
+106ft-86ft

Overall

922

Females

46

F18-39

46

20K→Half

12.4 - 13.1 mi

Top 5%
×2stories
+19ft-37ft

Overall

1436

Females

59

F18-39

59

Half→25K

13.1 - 15.5 mi

Top 6%
×4stories
+66ft-88ft

Overall

1596

Females

65

F18-39

65

25K→30K

15.5 - 18.6 mi

Top 9%
×9stories
+181ft-148ft

Overall

2471

Females

117

F18-39

117

30K→20M

18.6 - 20.0 mi

Top 10%
×5stories
+64ft-50ft

Overall

2599

Females

131

F18-39

131

20M→21M

20.0 - 21.0 mi

Top 21%
×8stories
+106ft-24ft

Overall

5463

Females

645

F18-39

645

21M→35K

21.0 - 21.8 mi

Top 16%
×7stories
+17ft-86ft

Overall

4209

Females

348

F18-39

348

35K→23M

21.8 - 23.0 mi

Top 26%
×5stories
+23ft-63ft

Overall

6919

Females

1131

F18-39

1131

23M→24M

23.0 - 24.0 mi

Top 15%
×6stories
+12ft-82ft

Overall

3959

Females

339

F18-39

339

24M→40K

24.0 - 24.9 mi

Top 20%
×1story
+6ft-20ft

Overall

5414

Females

769

F18-39

769

40K→25.2M

24.9 - 25.2 mi

Top 21%
×1story
+13ft-16ft

Overall

5586

Females

899

F18-39

899

25.2M→Finish

25.2 - 26.2 mi

Top 24%
×2stories
+22ft-21ft

Overall

6409

Females

1187

F18-39

1187

Passing Analysis

Category:
Athletes Passed
101
Passed By
1174
Net Change
-1073
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#519
5K → 10K4220+22#519#497
10K → 15K1712+5#497#492
15K → 20K878-70#492#562
20K → Half027-27#562#589
Half → 25K6104-98#589#687
25K → 30K1178-177#687#864
30K → 20M362-59#864#923
20M → 21M3116-113#923#1036
21M → 35K454-50#1036#1086
35K → 23M1208-207#1086#1293
23M → 24M971-62#1293#1355
24M → 40K393-90#1355#1445
40K → 25.2M152-51#1445#1496
25.2M → Finish399-96#1496#1592
TOTALS1011174-1073
📊

Passing Visuals

Category:

📈Position Graph

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🎨Heatmap Timeline

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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