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BOSTON MARATHON 2023

Geum Choi

Bib: 19930•F

CA

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Masters (Masters Women)
#0 / 6539
Division (F55-59)
#0 / 815
Top 40%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
27:18
Rank: #19399
Start → 5K
27:18 | 8:47/mi
10K· 6.21 mi
54:39
Rank: #19651 (-252)
5K → 10K
27:21 | 8:48/mi
15K· 9.32 mi
1:21:52
Rank: #19525 (+126)
10K → 15K
27:13 | 8:46/mi
20K· 12.43 mi
1:49:24
Rank: #19333 (+192)
15K → 20K
27:32 | 8:52/mi
Half· 13.11 mi
1:55:20
Rank: #19308 (+25)
20K → Half
5:56 | 8:42/mi
25K· 15.53 mi
2:16:58
Rank: #19189 (+119)
Half → 25K
21:38 | 8:55/mi
30K· 18.64 mi
2:45:52
Rank: #19095 (+94)
25K → 30K
28:54 | 9:18/mi
20M
2:58:50
Rank: #19085 (+10)
30K → 20M
12:58 | 9:33/mi
21M
3:09:17
Rank: #19116 (-31)
20M → 21M
10:27 | 10:27/mi
35K· 21.75 mi
3:16:08
Rank: #19099 (+17)
21M → 35K
6:51 | 9:09/mi
23M
3:28:06
Rank: #19071 (+28)
35K → 23M
11:58 | 9:33/mi
24M
3:37:08
Rank: #18993 (+78)
23M → 24M
9:02 | 9:02/mi
40K· 24.85 mi
3:45:09
Rank: #18955 (+38)
24M → 40K
8:01 | 9:23/mi
25.2M
3:48:45
Rank: #18954 (+1)
40K → 25.2M
3:36 | 10:26/mi
Finish· 26.22 mi
3:58:19
Rank: #19004 (-50)
25.2M → Finish
9:34 | 9:23/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:55:20
Pace8:48 /mi
2nd Half
Distance13.11 mi
Time2:02:59
Pace9:23 /mi
📊Positive Split: 6.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:18:5827:188:4727:18
8:47
-
10K
6.21 mi11:46:1954:398:4827:21
8:48
+0:01
15K
9.32 mi12:13:321:21:528:4727:13
8:46
-0:02
20K
12.43 mi12:41:041:49:248:4827:32
8:52
+0:06
Half
13.11 mi12:47:001:55:208:485:56
8:42
-0:10
25K
15.53 mi13:08:382:16:588:4921:38
8:55
+0:13
30K
18.64 mi13:37:322:45:528:5428:54
9:18
+0:23
20M
20.00 mi13:50:302:58:508:5612:58
9:33
+0:15
21M
21.00 mi14:00:573:09:179:0110:27
10:27
+0:54
35K
21.75 mi14:07:483:16:089:016:51
9:09
-1:18
23M
23.00 mi14:19:463:28:069:0311:58
9:33
+0:24
24M
24.00 mi14:28:483:37:089:039:02
9:02
-0:31
40K
24.85 mi14:36:493:45:099:048:01
9:23
+0:21
25.2M
25.20 mi14:40:253:48:459:053:36
10:26
+1:03
Finish
26.22 mi14:49:593:58:199:069:34
9:23
-1:03

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

8:42 /mi

Average Pace

9:06 /mi

Slowest Pace

10:27 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:55:20

48% of race

Time at Steady Pace

1:24:00

35% of race

Time at Slower Pace

38:59

16% of race

Average Pace: 9:05 /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 mi11:18:5827:188:4727:18
8:47
#19399
10K
6.21 mi11:46:1954:398:4827:21
8:48
#19651
15K
9.32 mi12:13:321:21:528:4727:13
8:46
#19525
20K
12.43 mi12:41:041:49:248:4827:32
8:52
#19333
Half
13.11 mi12:47:001:55:208:485:56
8:42
#19308
25K
15.53 mi13:08:382:16:588:4921:38
8:55
#19189
30K
18.64 mi13:37:322:45:528:5428:54
9:18
#19095
20M
20.00 mi13:50:302:58:508:5612:58
9:33
#19085
21M
21.00 mi14:00:573:09:179:0110:27
10:27
#19116
35K
21.75 mi14:07:483:16:089:016:51
9:09
#19099
23M
23.00 mi14:19:463:28:069:0311:58
9:33
#19071
24M
24.00 mi14:28:483:37:089:039:02
9:02
#18993
40K
24.85 mi14:36:493:45:099:048:01
9:23
#18955
25.2M
25.20 mi14:40:253:48:459:053:36
10:26
#18954
Finish
26.22 mi14:49:593:58:199:069:34
9:23
#19004
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF55-59Seg. OverallSeg. FemalesSeg. F55-59
5K3.11 mi3.11 mi193997440744019306(Top 73%)7272(Top 64%)7272(Top 892%)
10K6.21 mi3.10 mi19651-2527563-1237563-12319949(Top 75%)7667(Top 67%)7667(Top 941%)
15K9.32 mi3.11 mi19525+1267462+1017462+10119306(Top 73%)7272(Top 64%)7272(Top 892%)
20K12.43 mi3.11 mi19333+1927327+1357327+13519024(Top 71%)7102(Top 62%)7102(Top 871%)
Half13.11 mi0.68 mi19308+257309+187309+1818979(Top 71%)7078(Top 62%)7078(Top 868%)
25K15.53 mi2.42 mi19189+1197232+777232+7718583(Top 70%)6900(Top 60%)6900(Top 847%)
30K18.64 mi3.11 mi19095+947191+417191+4118646(Top 70%)7001(Top 61%)7001(Top 859%)
20M20.00 mi1.36 mi19085+107200-97200-919030(Top 71%)7313(Top 64%)7313(Top 897%)
21M21.00 mi1.00 mi19116-317235-357235-3519439(Top 73%)7602(Top 67%)7602(Top 933%)
35K21.75 mi0.75 mi19099+177229+67229+618595(Top 70%)7164(Top 63%)7164(Top 879%)
23M23.00 mi1.25 mi19071+287224+57224+518564(Top 70%)7163(Top 63%)7163(Top 879%)
24M24.00 mi1.00 mi18993+787195+297195+2917409(Top 65%)6588(Top 58%)6588(Top 808%)
40K24.85 mi0.85 mi18955+387173+227173+2217879(Top 67%)6887(Top 60%)6887(Top 845%)
25.2M25.20 mi0.35 mi18954+17180-77180-718931(Top 71%)7472(Top 65%)7472(Top 917%)
Finish26.22 mi1.02 mi19004-507212-327212-3219725(Top 74%)7849(Top 69%)7849(Top 963%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 73%
×21stories
+97ft-345ft

Overall

19306

Females

7272

F55-59

7272

5K→10K

3.1 - 6.2 mi

Top 75%
×5stories
+79ft-138ft

Overall

19949

Females

7667

F55-59

7667

10K→15K

6.2 - 9.3 mi

Top 73%
×3stories
+67ft-78ft

Overall

19306

Females

7272

F55-59

7272

15K→20K

9.3 - 12.4 mi

Top 71%
×5stories
+106ft-86ft

Overall

19024

Females

7102

F55-59

7102

20K→Half

12.4 - 13.1 mi

Top 71%
×2stories
+19ft-37ft

Overall

18979

Females

7078

F55-59

7078

Half→25K

13.1 - 15.5 mi

Top 70%
×4stories
+66ft-88ft

Overall

18583

Females

6900

F55-59

6900

25K→30K

15.5 - 18.6 mi

Top 70%
×9stories
+181ft-148ft

Overall

18646

Females

7001

F55-59

7001

30K→20M

18.6 - 20.0 mi

Top 71%
×5stories
+64ft-50ft

Overall

19030

Females

7313

F55-59

7313

20M→21M

20.0 - 21.0 mi

Top 73%
×8stories
+106ft-24ft

Overall

19439

Females

7602

F55-59

7602

21M→35K

21.0 - 21.8 mi

Top 70%
×7stories
+17ft-86ft

Overall

18595

Females

7164

F55-59

7164

35K→23M

21.8 - 23.0 mi

Top 70%
×5stories
+23ft-63ft

Overall

18564

Females

7163

F55-59

7163

23M→24M

23.0 - 24.0 mi

Top 65%
×6stories
+12ft-82ft

Overall

17409

Females

6588

F55-59

6588

24M→40K

24.0 - 24.9 mi

Top 67%
×1story
+6ft-20ft

Overall

17879

Females

6887

F55-59

6887

40K→25.2M

24.9 - 25.2 mi

Top 71%
×1story
+13ft-16ft

Overall

18931

Females

7472

F55-59

7472

25.2M→Finish

25.2 - 26.2 mi

Top 74%
×2stories
+22ft-21ft

Overall

19725

Females

7849

F55-59

7849

Passing Analysis

Category:
Athletes Passed
1674
Passed By
1279
Net Change
+395
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#19399
5K → 10K209461-252#19399#19651
10K → 15K254128+126#19651#19525
15K → 20K26068+192#19525#19333
20K → Half3914+25#19333#19308
Half → 25K18364+119#19308#19189
25K → 30K213119+94#19189#19095
30K → 20M9181+10#19095#19085
20M → 21M69100-31#19085#19116
21M → 35K4528+17#19116#19099
35K → 23M9062+28#19099#19071
23M → 24M10022+78#19071#18993
24M → 40K6729+38#18993#18955
40K → 25.2M2726+1#18955#18954
25.2M → Finish2777-50#18954#19004
TOTALS16741279+395
📊

Passing Visuals

Category:
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🔥Passing Intensity

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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