Boston Marathon logo
BOSTON MARATHON 2023

Soonim Shin

Bib: 24247•F

CA

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 26622
Gender (Female)
#0 / 11423
Masters (Masters Women)
#0 / 6539
Division (F65-69)
#0 / 221
Top 43%
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
9:10/mi
28:28
↑ 97↓ 3451.5%
10K· 6.21 mi
9:13/mi
57:06
↑ 79↓ 1380.4%
15K· 9.32 mi
9:20/mi
1:26:05
↑ 67↓ 78
20K· 12.43 mi
9:25/mi
1:55:21
↑ 106↓ 860.1%
Half· 13.11 mi
9:29/mi
2:01:49
↑ 19↓ 370.5%
25K· 15.53 mi
10:40/mi
2:27:41
↑ 66↓ 880.2%
30K· 18.64 mi
10:17/mi
2:59:39
↑ 181↓ 1480.2%
20M
10:50/mi
3:14:22
↑ 64↓ 500.2%
21M
11:56/mi
3:26:18
↑ 106↓ 241.6%
35K· 21.75 mi
10:08/mi
3:33:53
↑ 17↓ 861.7%
23M
11:42/mi
3:48:32
↑ 23↓ 630.6%
24M
10:14/mi
3:58:46
↓ 821.3%
40K· 24.85 mi
11:00/mi
4:08:10
↓ 200.3%
25.2M
11:36/mi
4:12:10
↑ 13↓ 160.2%
Finish· 26.22 mi
10:36/mi
4:22:58
↑ 22↓ 21

The Course

Is this your race?

Claim it — unlock a deeper AI report on this race, free

A personalized Race Performance Report that goes beyond this page — emailed to you, built from your real splits.

Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:01:49
Pace9:18 /mi
2nd Half
Distance13.11 mi
Time2:21:09
Pace10:46 /mi
📊Positive Split: 15.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:52:1528:289:1028:28
9:10
-
10K
6.21 mi12:20:5357:069:1128:38
9:13
+0:03
15K
9.32 mi12:49:521:26:059:1428:59
9:20
+0:07
20K
12.43 mi13:19:081:55:219:1729:16
9:25
+0:05
Half
13.11 mi13:25:362:01:499:186:28
9:29
+0:04
25K
15.53 mi13:51:282:27:419:3025:52
10:40
+1:11
30K
18.64 mi14:23:262:59:399:3831:58
10:17
-0:23
20M
20.00 mi14:38:093:14:229:4314:43
10:50
+0:33
21M
21.00 mi14:50:053:26:189:4911:56
11:56
+1:06
35K
21.75 mi14:57:403:33:539:507:35
10:08
-1:48
23M
23.00 mi15:12:193:48:329:5614:39
11:42
+1:34
24M
24.00 mi15:22:333:58:469:5710:14
10:14
-1:28
40K
24.85 mi15:31:574:08:109:599:24
11:00
+0:46
25.2M
25.20 mi15:35:574:12:1010:004:00
11:36
+0:36
Finish
26.22 mi15:46:454:22:5810:0210:48
10:36
-1:00

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

9:10 /mi

Average Pace

10:02 /mi

Slowest Pace

11:56 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:01:49

46% of race

Time at Steady Pace

1:26:27

33% of race

Time at Slower Pace

54:42

21% of race

Average Pace: 10:02 /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 mi11:52:1528:289:1028:28
9:10
#21096
10K
6.21 mi12:20:5357:069:1128:38
9:13
#21365
15K
9.32 mi12:49:521:26:059:1428:59
9:20
#21486
20K
12.43 mi13:19:081:55:219:1729:16
9:25
#21452
Half
13.11 mi13:25:362:01:499:186:28
9:29
#21478
25K
15.53 mi13:51:282:27:419:3025:52
10:40
#21914
30K
18.64 mi14:23:262:59:399:3831:58
10:17
#21880
20M
20.00 mi14:38:093:14:229:4314:43
10:50
#21929
21M
21.00 mi14:50:053:26:189:4911:56
11:56
#21996
35K
21.75 mi14:57:403:33:539:507:35
10:08
#21986
23M
23.00 mi15:12:193:48:329:5614:39
11:42
#22092
24M
24.00 mi15:22:333:58:469:5710:14
10:14
#22061
40K
24.85 mi15:31:574:08:109:599:24
11:00
#22063
25.2M
25.20 mi15:35:574:12:1010:004:00
11:36
#22068
Finish
26.22 mi15:46:454:22:5810:0210:48
10:36
#22101
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF65-69Seg. OverallSeg. FemalesSeg. F65-69
5K3.11 mi3.11 mi210968423842321736(Top 82%)8639(Top 76%)8639(Top 3909%)
10K6.21 mi3.10 mi21365-2698510-878510-8721674(Top 81%)8645(Top 76%)8645(Top 3912%)
15K9.32 mi3.11 mi21486-1218547-378547-3721736(Top 82%)8639(Top 76%)8639(Top 3909%)
20K12.43 mi3.11 mi21452+348529+188529+1821306(Top 80%)8407(Top 74%)8407(Top 3804%)
Half13.11 mi0.68 mi21478-268534-58534-522078(Top 83%)8827(Top 77%)8827(Top 3994%)
25K15.53 mi2.42 mi21914-4368778-2448778-24423463(Top 88%)9647(Top 84%)9647(Top 4365%)
30K18.64 mi3.11 mi21880+348764+148764+1421756(Top 82%)8766(Top 77%)8766(Top 3967%)
20M20.00 mi1.36 mi21929-498807-438807-4322401(Top 84%)9197(Top 81%)9197(Top 4162%)
21M21.00 mi1.00 mi21996-678851-448851-4422653(Top 85%)9360(Top 82%)9360(Top 4235%)
35K21.75 mi0.75 mi21986+108850+18850+121646(Top 81%)8852(Top 77%)8852(Top 4005%)
23M23.00 mi1.25 mi22092-1068925-758925-7523577(Top 89%)9892(Top 87%)9892(Top 4476%)
24M24.00 mi1.00 mi22061+318909+168909+1621425(Top 80%)8806(Top 77%)8806(Top 3985%)
40K24.85 mi0.85 mi22063-28925-168925-1622350(Top 84%)9319(Top 82%)9319(Top 4217%)
25.2M25.20 mi0.35 mi22068-58930-58930-521784(Top 82%)9009(Top 79%)9009(Top 4076%)
Finish26.22 mi1.02 mi22101-338962-328962-3223212(Top 87%)9755(Top 85%)9755(Top 4414%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 82%
×21story building
+97ft-345ft

Overall

21736

Females

8639

F65-69

8639

5K→10K

3.1 - 6.2 mi

Top 81%
×5story building
+79ft-138ft

Overall

21674

Females

8645

F65-69

8645

10K→15K

6.2 - 9.3 mi

Top 82%
×3story building
+67ft-78ft

Overall

21736

Females

8639

F65-69

8639

15K→20K

9.3 - 12.4 mi

Top 80%
×5story building
+106ft-86ft

Overall

21306

Females

8407

F65-69

8407

20K→Half

12.4 - 13.1 mi

Top 83%
×2story building
+19ft-37ft

Overall

22078

Females

8827

F65-69

8827

Half→25K

13.1 - 15.5 mi

Top 88%
×4story building
+66ft-88ft

Overall

23463

Females

9647

F65-69

9647

25K→30K

15.5 - 18.6 mi

Top 82%
×9story building
+181ft-148ft

Overall

21756

Females

8766

F65-69

8766

30K→20M

18.6 - 20.0 mi

Top 84%
×5story building
+64ft-50ft

Overall

22401

Females

9197

F65-69

9197

20M→21M

20.0 - 21.0 mi

Top 85%
×8story building
+106ft-24ft

Overall

22653

Females

9360

F65-69

9360

21M→35K

21.0 - 21.8 mi

Top 81%
×7story building
+17ft-86ft

Overall

21646

Females

8852

F65-69

8852

35K→23M

21.8 - 23.0 mi

Top 89%
×5story building
+23ft-63ft

Overall

23577

Females

9892

F65-69

9892

23M→24M

23.0 - 24.0 mi

Top 80%
×6story building
+12ft-82ft

Overall

21425

Females

8806

F65-69

8806

24M→40K

24.0 - 24.9 mi

Top 84%
×1story
+6ft-20ft

Overall

22350

Females

9319

F65-69

9319

40K→25.2M

24.9 - 25.2 mi

Top 82%
×1story
+13ft-16ft

Overall

21784

Females

9009

F65-69

9009

25.2M→Finish

25.2 - 26.2 mi

Top 87%
×2story building
+22ft-21ft

Overall

23212

Females

9755

F65-69

9755

Passing Analysis

Category:
Athletes Passed
915
Passed By
1920
Net Change
-1005
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#21096
5K → 10K169438-269#21096#21365
10K → 15K110231-121#21365#21486
15K → 20K152118+34#21486#21452
20K → Half1642-26#21452#21478
Half → 25K18454-436#21478#21914
25K → 30K158124+34#21914#21880
30K → 20M57106-49#21880#21929
20M → 21M39106-67#21929#21996
21M → 35K3626+10#21996#21986
35K → 23M23129-106#21986#22092
23M → 24M5120+31#22092#22061
24M → 40K4143-2#22061#22063
40K → 25.2M1722-5#22063#22068
25.2M → Finish2861-33#22068#22101
TOTALS9151920-1005
📊

Passing Visuals

Category:
Loading...

🔄Passing Circle

Loading...

🌊Position Flow

Loading...

🏃Race Lanes

Loading...

Upload your GPX file

Supports Garmin, Apple Watch, Polar, Suunto, COROS, Strava, and other apps

.gpx files up to 10MB

Export Track Data

Download your race performance as a GPX or TCX file to import into Strava, Garmin Connect, or other fitness apps.

Questions or issues regarding timing data?

If you notice any discrepancies in your timing data or have questions about your results, our support team can help.

Contact Race Support

Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing