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BOSTON MARATHON 2023

Yvonne Smith

Bib: 18861•F

SD

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Masters (Masters Women)
#0 / 6539
Top 44%
Division (F50-54)
#0 / 1207
Top 38%
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
8:14/mi
25:36
↑ 97↓ 3451.5%
10K· 6.21 mi
8:00/mi
50:26
↑ 79↓ 1380.4%
15K· 9.32 mi
8:09/mi
1:15:45
↑ 67↓ 78
20K· 12.43 mi
8:57/mi
1:43:34
↑ 106↓ 860.1%
Half· 13.11 mi
8:15/mi
1:49:12
↑ 19↓ 370.5%
25K· 15.53 mi
8:31/mi
2:09:51
↑ 66↓ 880.2%
30K· 18.64 mi
9:00/mi
2:37:48
↑ 181↓ 1480.2%
20M
9:13/mi
2:50:19
↑ 64↓ 500.2%
21M
9:55/mi
3:00:14
↑ 106↓ 241.6%
35K· 21.75 mi
9:52/mi
3:07:37
↑ 17↓ 861.7%
23M
9:55/mi
3:20:02
↑ 23↓ 630.6%
24M
9:13/mi
3:29:15
↓ 821.3%
40K· 24.85 mi
8:57/mi
3:36:54
↓ 200.3%
25.2M
9:34/mi
3:40:12
↑ 13↓ 160.2%
Finish· 26.22 mi
8:27/mi
3:48:49
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:49:12
Pace8:20 /mi
2nd Half
Distance13.11 mi
Time1:59:37
Pace9:07 /mi
📊Positive Split: 9.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:17:0225:368:1425:36
8:14
-
10K
6.21 mi11:41:5250:268:0724:50
8:00
-0:14
15K
9.32 mi12:07:111:15:458:0825:19
8:09
+0:09
20K
12.43 mi12:35:001:43:348:2027:49
8:57
+0:48
Half
13.11 mi12:40:381:49:128:205:38
8:15
-0:42
25K
15.53 mi13:01:172:09:518:2220:39
8:31
+0:16
30K
18.64 mi13:29:142:37:488:2827:57
9:00
+0:29
20M
20.00 mi13:41:452:50:198:3112:31
9:13
+0:13
21M
21.00 mi13:51:403:00:148:359:55
9:55
+0:42
35K
21.75 mi13:59:033:07:378:387:23
9:52
-0:03
23M
23.00 mi14:11:283:20:028:4212:25
9:55
+0:03
24M
24.00 mi14:20:413:29:158:439:13
9:13
-0:42
40K
24.85 mi14:28:203:36:548:447:39
8:57
-0:16
25.2M
25.20 mi14:31:383:40:128:443:18
9:34
+0:37
Finish
26.22 mi14:40:153:48:498:448:37
8:27
-1:07

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

8:00 /mi

Average Pace

8:44 /mi

Slowest Pace

9:55 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:50:39

48% of race

Time at Steady Pace

1:25:09

37% of race

Time at Slower Pace

33:01

14% of race

Average Pace: 8:44 /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 mi11:17:0225:368:1425:36
8:14
#15737
10K
6.21 mi11:41:5250:268:0724:50
8:00
#15238
15K
9.32 mi12:07:111:15:458:0825:19
8:09
#15325
20K
12.43 mi12:35:001:43:348:2027:49
8:57
#16516
Half
13.11 mi12:40:381:49:128:205:38
8:15
#16497
25K
15.53 mi13:01:172:09:518:2220:39
8:31
#16473
30K
18.64 mi13:29:142:37:488:2827:57
9:00
#16564
20M
20.00 mi13:41:452:50:198:3112:31
9:13
#16637
21M
21.00 mi13:51:403:00:148:359:55
9:55
#16706
35K
21.75 mi13:59:033:07:378:387:23
9:52
#16921
23M
23.00 mi14:11:283:20:028:4212:25
9:55
#17154
24M
24.00 mi14:20:413:29:158:439:13
9:13
#17213
40K
24.85 mi14:28:203:36:548:447:39
8:57
#17152
25.2M
25.20 mi14:31:383:40:128:443:18
9:34
#17136
Finish
26.22 mi14:40:153:48:498:448:37
8:27
#17057
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi157375117511715511(Top 58%)4992(Top 44%)4992(Top 414%)
10K6.21 mi3.10 mi15238+4994796+3214796+32114780(Top 56%)4533(Top 40%)4533(Top 376%)
15K9.32 mi3.11 mi15325-874869-734869-7315511(Top 58%)4992(Top 44%)4992(Top 414%)
20K12.43 mi3.11 mi16516-11915624-7555624-75519484(Top 73%)7370(Top 65%)7370(Top 611%)
Half13.11 mi0.68 mi16497+195614+105614+1016278(Top 61%)5479(Top 48%)5479(Top 454%)
25K15.53 mi2.42 mi16473+245624-105624-1016324(Top 61%)5631(Top 49%)5631(Top 467%)
30K18.64 mi3.11 mi16564-915722-985722-9817155(Top 64%)6162(Top 54%)6162(Top 511%)
20M20.00 mi1.36 mi16637-735777-555777-5517606(Top 66%)6518(Top 57%)6518(Top 540%)
21M21.00 mi1.00 mi16706-695820-435820-4317724(Top 67%)6593(Top 58%)6593(Top 546%)
35K21.75 mi0.75 mi16921-2155943-1235943-12320917(Top 79%)8441(Top 74%)8441(Top 699%)
23M23.00 mi1.25 mi17154-2336107-1646107-16419739(Top 74%)7814(Top 68%)7814(Top 647%)
24M24.00 mi1.00 mi17213-596159-526159-5218128(Top 68%)6964(Top 61%)6964(Top 577%)
40K24.85 mi0.85 mi17152+616144+156144+1515900(Top 60%)5798(Top 51%)5798(Top 480%)
25.2M25.20 mi0.35 mi17136+166144614415583(Top 59%)5644(Top 49%)5644(Top 468%)
Finish26.22 mi1.02 mi17057+796105+396105+3915173(Top 57%)5362(Top 47%)5362(Top 444%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 58%
×21story building
+97ft-345ft

Overall

15511

Females

4992

F50-54

4992

5K→10K

3.1 - 6.2 mi

Top 56%
×5story building
+79ft-138ft

Overall

14780

Females

4533

F50-54

4533

10K→15K

6.2 - 9.3 mi

Top 58%
×3story building
+67ft-78ft

Overall

15511

Females

4992

F50-54

4992

15K→20K

9.3 - 12.4 mi

Top 73%
×5story building
+106ft-86ft

Overall

19484

Females

7370

F50-54

7370

20K→Half

12.4 - 13.1 mi

Top 61%
×2story building
+19ft-37ft

Overall

16278

Females

5479

F50-54

5479

Half→25K

13.1 - 15.5 mi

Top 61%
×4story building
+66ft-88ft

Overall

16324

Females

5631

F50-54

5631

25K→30K

15.5 - 18.6 mi

Top 64%
×9story building
+181ft-148ft

Overall

17155

Females

6162

F50-54

6162

30K→20M

18.6 - 20.0 mi

Top 66%
×5story building
+64ft-50ft

Overall

17606

Females

6518

F50-54

6518

20M→21M

20.0 - 21.0 mi

Top 67%
×8story building
+106ft-24ft

Overall

17724

Females

6593

F50-54

6593

21M→35K

21.0 - 21.8 mi

Top 79%
×7story building
+17ft-86ft

Overall

20917

Females

8441

F50-54

8441

35K→23M

21.8 - 23.0 mi

Top 74%
×5story building
+23ft-63ft

Overall

19739

Females

7814

F50-54

7814

23M→24M

23.0 - 24.0 mi

Top 68%
×6story building
+12ft-82ft

Overall

18128

Females

6964

F50-54

6964

24M→40K

24.0 - 24.9 mi

Top 60%
×1story
+6ft-20ft

Overall

15900

Females

5798

F50-54

5798

40K→25.2M

24.9 - 25.2 mi

Top 59%
×1story
+13ft-16ft

Overall

15583

Females

5644

F50-54

5644

25.2M→Finish

25.2 - 26.2 mi

Top 57%
×2story building
+22ft-21ft

Overall

15173

Females

5362

F50-54

5362

Passing Analysis

Category:
Athletes Passed
1577
Passed By
2897
Net Change
-1320
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#15737
5K → 10K625126+499#15737#15238
10K → 15K146233-87#15238#15325
15K → 20K251216-1191#15325#16516
20K → Half3718+19#16516#16497
Half → 25K144120+24#16497#16473
25K → 30K160251-91#16473#16564
30K → 20M57130-73#16564#16637
20M → 21M59128-69#16637#16706
21M → 35K10225-215#16706#16921
35K → 23M34267-233#16921#17154
23M → 24M44103-59#17154#17213
24M → 40K8928+61#17213#17152
40K → 25.2M3620+16#17152#17136
25.2M → Finish11132+79#17136#17057
TOTALS15772897-1320
📊

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