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BOSTON MARATHON 2023

Kori Bastia

Bib: 26635•F

MA

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Masters (Masters Women)
#0 / 6539
Division (F45-49)
#0 / 1817
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
10:12/mi
31:41
↑ 97↓ 3451.5%
10K· 6.21 mi
10:26/mi
1:04:05
↑ 79↓ 1380.4%
15K· 9.32 mi
10:48/mi
1:37:38
↑ 67↓ 78
20K· 12.43 mi
11:29/mi
2:13:19
↑ 106↓ 860.1%
Half· 13.11 mi
11:14/mi
2:20:59
↑ 19↓ 370.5%
25K· 15.53 mi
11:47/mi
2:49:34
↑ 66↓ 880.2%
30K· 18.64 mi
12:48/mi
3:29:19
↑ 181↓ 1480.2%
20M
12:17/mi
3:46:01
↑ 64↓ 500.2%
21M
13:12/mi
3:59:13
↑ 106↓ 241.6%
35K· 21.75 mi
11:22/mi
4:07:43
↑ 17↓ 861.7%
23M
11:37/mi
4:22:16
↑ 23↓ 630.6%
24M
11:17/mi
4:33:33
↓ 821.3%
40K· 24.85 mi
12:02/mi
4:43:50
↓ 200.3%
25.2M
12:57/mi
4:48:18
↑ 13↓ 160.2%
Finish· 26.22 mi
11:19/mi
4:59:50
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:20:59
Pace10:45 /mi
2nd Half
Distance13.11 mi
Time2:38:51
Pace12:07 /mi
📊Positive Split: 12.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:48:1131:4110:1231:41
10:12
-
10K
6.21 mi12:20:351:04:0510:1932:24
10:26
+0:14
15K
9.32 mi12:54:081:37:3810:2933:33
10:48
+0:22
20K
12.43 mi13:29:492:13:1910:4435:41
11:29
+0:41
Half
13.11 mi13:37:292:20:5910:457:40
11:14
-0:15
25K
15.53 mi14:06:042:49:3410:5528:35
11:47
+0:33
30K
18.64 mi14:45:493:29:1911:1439:45
12:48
+1:01
20M
20.00 mi15:02:313:46:0111:1816:42
12:17
-0:31
21M
21.00 mi15:15:433:59:1311:2313:12
13:12
+0:55
35K
21.75 mi15:24:134:07:4311:238:30
11:22
-1:50
23M
23.00 mi15:38:464:22:1611:2414:33
11:37
+0:15
24M
24.00 mi15:50:034:33:3311:2411:17
11:17
-0:20
40K
24.85 mi16:00:204:43:5011:2510:17
12:02
+0:45
25.2M
25.20 mi16:04:484:48:1811:264:28
12:57
+0:55
Finish
26.22 mi16:16:204:59:5011:2711:32
11:19
-1:38

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

10:12 /mi

Average Pace

11:27 /mi

Slowest Pace

13:12 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:37:38

33% of race

Time at Steady Pace

1:57:48

39% of race

Time at Slower Pace

1:24:24

28% of race

Average Pace: 11:26 /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 mi11:48:1131:4110:1231:41
10:12
#23949
10K
6.21 mi12:20:351:04:0510:1932:24
10:26
#24300
15K
9.32 mi12:54:081:37:3810:2933:33
10:48
#24588
20K
12.43 mi13:29:492:13:1910:4435:41
11:29
#24818
Half
13.11 mi13:37:292:20:5910:457:40
11:14
#24840
25K
15.53 mi14:06:042:49:3410:5528:35
11:47
#24884
30K
18.64 mi14:45:493:29:1911:1439:45
12:48
#25006
20M
20.00 mi15:02:313:46:0111:1816:42
12:17
#24986
21M
21.00 mi15:15:433:59:1311:2313:12
13:12
#24952
35K
21.75 mi15:24:134:07:4311:238:30
11:22
#24922
23M
23.00 mi15:38:464:22:1611:2414:33
11:37
#24859
24M
24.00 mi15:50:034:33:3311:2411:17
11:17
#24814
40K
24.85 mi16:00:204:43:5011:2510:17
12:02
#24799
25.2M
25.20 mi16:04:484:48:1811:264:28
12:57
#24800
Finish
26.22 mi16:16:204:59:5011:2711:32
11:19
#24811
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi239499865986524936(Top 94%)10425(Top 91%)10425(Top 574%)
10K6.21 mi3.10 mi24300-35110054-18910054-18924554(Top 92%)10199(Top 89%)10199(Top 561%)
15K9.32 mi3.11 mi24588-28810215-16110215-16124936(Top 94%)10425(Top 91%)10425(Top 574%)
20K12.43 mi3.11 mi24818-23010350-13510350-13525230(Top 95%)10619(Top 93%)10619(Top 584%)
Half13.11 mi0.68 mi24840-2210366-1610366-1625251(Top 95%)10646(Top 93%)10646(Top 586%)
25K15.53 mi2.42 mi24884-4410403-3710403-3724971(Top 94%)10500(Top 92%)10500(Top 578%)
30K18.64 mi3.11 mi25006-12210489-8610489-8625250(Top 95%)10710(Top 94%)10710(Top 589%)
20M20.00 mi1.36 mi24986+20104891048924532(Top 92%)10354(Top 91%)10354(Top 570%)
21M21.00 mi1.00 mi24952+3410484+510484+524305(Top 91%)10250(Top 90%)10250(Top 564%)
35K21.75 mi0.75 mi24922+3010468+1610468+1623921(Top 90%)10095(Top 88%)10095(Top 556%)
23M23.00 mi1.25 mi24859+6310438+3010438+3023459(Top 88%)9830(Top 86%)9830(Top 541%)
24M24.00 mi1.00 mi24814+4510424+1410424+1423568(Top 89%)9931(Top 87%)9931(Top 547%)
40K24.85 mi0.85 mi24799+1510417+710417+723932(Top 90%)10146(Top 89%)10146(Top 558%)
25.2M25.20 mi0.35 mi24800-110422-510422-523924(Top 90%)10150(Top 89%)10150(Top 559%)
Finish26.22 mi1.02 mi24811-1110435-1310435-1324456(Top 92%)10383(Top 91%)10383(Top 571%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 94%
×21story building
+97ft-345ft

Overall

24936

Females

10425

F45-49

10425

5K→10K

3.1 - 6.2 mi

Top 92%
×5story building
+79ft-138ft

Overall

24554

Females

10199

F45-49

10199

10K→15K

6.2 - 9.3 mi

Top 94%
×3story building
+67ft-78ft

Overall

24936

Females

10425

F45-49

10425

15K→20K

9.3 - 12.4 mi

Top 95%
×5story building
+106ft-86ft

Overall

25230

Females

10619

F45-49

10619

20K→Half

12.4 - 13.1 mi

Top 95%
×2story building
+19ft-37ft

Overall

25251

Females

10646

F45-49

10646

Half→25K

13.1 - 15.5 mi

Top 94%
×4story building
+66ft-88ft

Overall

24971

Females

10500

F45-49

10500

25K→30K

15.5 - 18.6 mi

Top 95%
×9story building
+181ft-148ft

Overall

25250

Females

10710

F45-49

10710

30K→20M

18.6 - 20.0 mi

Top 92%
×5story building
+64ft-50ft

Overall

24532

Females

10354

F45-49

10354

20M→21M

20.0 - 21.0 mi

Top 91%
×8story building
+106ft-24ft

Overall

24305

Females

10250

F45-49

10250

21M→35K

21.0 - 21.8 mi

Top 90%
×7story building
+17ft-86ft

Overall

23921

Females

10095

F45-49

10095

35K→23M

21.8 - 23.0 mi

Top 88%
×5story building
+23ft-63ft

Overall

23459

Females

9830

F45-49

9830

23M→24M

23.0 - 24.0 mi

Top 89%
×6story building
+12ft-82ft

Overall

23568

Females

9931

F45-49

9931

24M→40K

24.0 - 24.9 mi

Top 90%
×1story
+6ft-20ft

Overall

23932

Females

10146

F45-49

10146

40K→25.2M

24.9 - 25.2 mi

Top 90%
×1story
+13ft-16ft

Overall

23924

Females

10150

F45-49

10150

25.2M→Finish

25.2 - 26.2 mi

Top 92%
×2story building
+22ft-21ft

Overall

24456

Females

10383

F45-49

10383

Passing Analysis

Category:
Athletes Passed
617
Passed By
1479
Net Change
-862
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#23949
5K → 10K73424-351#23949#24300
10K → 15K54342-288#24300#24588
15K → 20K32262-230#24588#24818
20K → Half1436-22#24818#24840
Half → 25K63107-44#24840#24884
25K → 30K52174-122#24884#25006
30K → 20M4929+20#25006#24986
20M → 21M6228+34#24986#24952
21M → 35K399+30#24952#24922
35K → 23M718+63#24922#24859
23M → 24M527+45#24859#24814
24M → 40K3318+15#24814#24799
40K → 25.2M89-1#24799#24800
25.2M → Finish1526-11#24800#24811
TOTALS6171479-862
📊

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