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BOSTON MARATHON 2023

Kelsey Tsinzo

Bib: 24681•F

MA

0:00
0:00
/ mi
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Division (F18-39)
#0 / 4884
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
9:44/mi
30:14
↑ 97↓ 3451.5%
10K· 6.21 mi
9:41/mi
1:00:20
↑ 79↓ 1380.4%
15K· 9.32 mi
9:55/mi
1:31:08
↑ 67↓ 78
20K· 12.43 mi
10:09/mi
2:02:41
↑ 106↓ 860.1%
Half· 13.11 mi
10:11/mi
2:09:38
↑ 19↓ 370.5%
25K· 15.53 mi
10:48/mi
2:35:48
↑ 66↓ 880.2%
30K· 18.64 mi
11:15/mi
3:10:44
↑ 181↓ 1480.2%
20M
11:32/mi
3:26:25
↑ 64↓ 500.2%
21M
12:03/mi
3:38:28
↑ 106↓ 241.6%
35K· 21.75 mi
10:51/mi
3:46:35
↑ 17↓ 861.7%
23M
11:32/mi
4:01:01
↑ 23↓ 630.6%
24M
11:07/mi
4:12:08
↓ 821.3%
40K· 24.85 mi
11:11/mi
4:21:42
↓ 200.3%
25.2M
11:45/mi
4:25:45
↑ 13↓ 160.2%
Finish· 26.22 mi
10:01/mi
4:35:57
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:09:38
Pace9:53 /mi
2nd Half
Distance13.11 mi
Time2:26:19
Pace11:10 /mi
📊Positive Split: 12.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:45:4030:149:4430:14
9:44
-
10K
6.21 mi12:15:461:00:209:4330:06
9:41
-0:03
15K
9.32 mi12:46:341:31:089:4730:48
9:55
+0:14
20K
12.43 mi13:18:072:02:419:5231:33
10:09
+0:14
Half
13.11 mi13:25:042:09:389:536:57
10:11
+0:02
25K
15.53 mi13:51:142:35:4810:0226:10
10:48
+0:37
30K
18.64 mi14:26:103:10:4410:1434:56
11:15
+0:27
20M
20.00 mi14:41:513:26:2510:1915:41
11:32
+0:17
21M
21.00 mi14:53:543:38:2810:2412:03
12:03
+0:31
35K
21.75 mi15:02:013:46:3510:258:07
10:51
-1:12
23M
23.00 mi15:16:274:01:0110:2914:26
11:32
+0:41
24M
24.00 mi15:27:344:12:0810:3011:07
11:07
-0:25
40K
24.85 mi15:37:084:21:4210:329:34
11:11
+0:04
25.2M
25.20 mi15:41:114:25:4510:334:03
11:45
+0:34
Finish
26.22 mi15:51:234:35:5710:3210:12
10:01
-1:44

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

9:41 /mi

Average Pace

10:32 /mi

Slowest Pace

12:03 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:19:50

51% of race

Time at Steady Pace

54:58

20% of race

Time at Slower Pace

1:21:09

29% of race

Average Pace: 10:31 /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 mi11:45:4030:149:4430:14
9:44
#22740
10K
6.21 mi12:15:461:00:209:4330:06
9:41
#22933
15K
9.32 mi12:46:341:31:089:4730:48
9:55
#23096
20K
12.43 mi13:18:072:02:419:5231:33
10:09
#23127
Half
13.11 mi13:25:042:09:389:536:57
10:11
#23154
25K
15.53 mi13:51:142:35:4810:0226:10
10:48
#23271
30K
18.64 mi14:26:103:10:4410:1434:56
11:15
#23303
20M
20.00 mi14:41:513:26:2510:1915:41
11:32
#23327
21M
21.00 mi14:53:543:38:2810:2412:03
12:03
#23305
35K
21.75 mi15:02:013:46:3510:258:07
10:51
#23294
23M
23.00 mi15:16:274:01:0110:2914:26
11:32
#23291
24M
24.00 mi15:27:344:12:0810:3011:07
11:07
#23301
40K
24.85 mi15:37:084:21:4210:329:34
11:11
#23284
25.2M
25.20 mi15:41:114:25:4510:334:03
11:45
#23260
Finish
26.22 mi15:51:234:35:5710:3210:12
10:01
#23198
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi227409254925423340(Top 88%)9514(Top 83%)9514(Top 195%)
10K6.21 mi3.10 mi22933-1939323-699323-6923028(Top 86%)9347(Top 82%)9347(Top 191%)
15K9.32 mi3.11 mi23096-1639401-789401-7823340(Top 88%)9514(Top 83%)9514(Top 195%)
20K12.43 mi3.11 mi23127-319417-169417-1623223(Top 87%)9467(Top 83%)9467(Top 194%)
Half13.11 mi0.68 mi23154-279432-159432-1523652(Top 89%)9708(Top 85%)9708(Top 199%)
25K15.53 mi2.42 mi23271-1179495-639495-6323659(Top 89%)9764(Top 85%)9764(Top 200%)
30K18.64 mi3.11 mi23303-329541-469541-4623485(Top 88%)9725(Top 85%)9725(Top 199%)
20M20.00 mi1.36 mi23327-249564-239564-2323590(Top 89%)9834(Top 86%)9834(Top 201%)
21M21.00 mi1.00 mi23305+229558+69558+622840(Top 86%)9464(Top 83%)9464(Top 194%)
35K21.75 mi0.75 mi23294+119561-39561-323031(Top 87%)9608(Top 84%)9608(Top 197%)
23M23.00 mi1.25 mi23291+39573-129573-1223299(Top 88%)9745(Top 85%)9745(Top 200%)
24M24.00 mi1.00 mi23301-109580-79580-723272(Top 87%)9784(Top 86%)9784(Top 200%)
40K24.85 mi0.85 mi23284+179582-29582-222726(Top 85%)9513(Top 83%)9513(Top 195%)
25.2M25.20 mi0.35 mi23260+249578+49578+422075(Top 83%)9170(Top 80%)9170(Top 188%)
Finish26.22 mi1.02 mi23198+629550+289550+2821797(Top 82%)9010(Top 79%)9010(Top 184%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 88%
×21story building
+97ft-345ft

Overall

23340

Females

9514

F18-39

9514

5K→10K

3.1 - 6.2 mi

Top 86%
×5story building
+79ft-138ft

Overall

23028

Females

9347

F18-39

9347

10K→15K

6.2 - 9.3 mi

Top 88%
×3story building
+67ft-78ft

Overall

23340

Females

9514

F18-39

9514

15K→20K

9.3 - 12.4 mi

Top 87%
×5story building
+106ft-86ft

Overall

23223

Females

9467

F18-39

9467

20K→Half

12.4 - 13.1 mi

Top 89%
×2story building
+19ft-37ft

Overall

23652

Females

9708

F18-39

9708

Half→25K

13.1 - 15.5 mi

Top 89%
×4story building
+66ft-88ft

Overall

23659

Females

9764

F18-39

9764

25K→30K

15.5 - 18.6 mi

Top 88%
×9story building
+181ft-148ft

Overall

23485

Females

9725

F18-39

9725

30K→20M

18.6 - 20.0 mi

Top 89%
×5story building
+64ft-50ft

Overall

23590

Females

9834

F18-39

9834

20M→21M

20.0 - 21.0 mi

Top 86%
×8story building
+106ft-24ft

Overall

22840

Females

9464

F18-39

9464

21M→35K

21.0 - 21.8 mi

Top 87%
×7story building
+17ft-86ft

Overall

23031

Females

9608

F18-39

9608

35K→23M

21.8 - 23.0 mi

Top 88%
×5story building
+23ft-63ft

Overall

23299

Females

9745

F18-39

9745

23M→24M

23.0 - 24.0 mi

Top 87%
×6story building
+12ft-82ft

Overall

23272

Females

9784

F18-39

9784

24M→40K

24.0 - 24.9 mi

Top 85%
×1story
+6ft-20ft

Overall

22726

Females

9513

F18-39

9513

40K→25.2M

24.9 - 25.2 mi

Top 83%
×1story
+13ft-16ft

Overall

22075

Females

9170

F18-39

9170

25.2M→Finish

25.2 - 26.2 mi

Top 82%
×2story building
+22ft-21ft

Overall

21797

Females

9010

F18-39

9010

Passing Analysis

Category:
Athletes Passed
889
Passed By
1347
Net Change
-458
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#22740
5K → 10K161354-193#22740#22933
10K → 15K76239-163#22933#23096
15K → 20K117148-31#23096#23127
20K → Half1239-27#23127#23154
Half → 25K62179-117#23154#23271
25K → 30K110142-32#23271#23303
30K → 20M3660-24#23303#23327
20M → 21M5634+22#23327#23305
21M → 35K3221+11#23305#23294
35K → 23M5350+3#23294#23291
23M → 24M2737-10#23291#23301
24M → 40K4730+17#23301#23284
40K → 25.2M3410+24#23284#23260
25.2M → Finish664+62#23260#23198
TOTALS8891347-458
📊

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