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BOSTON MARATHON 2023

Eunhee Sung

Bib: 18818•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 45%
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
8:26/mi
26:13
↑ 97↓ 3451.5%
10K· 6.21 mi
8:23/mi
52:16
↑ 79↓ 1380.4%
15K· 9.32 mi
8:52/mi
1:19:50
↑ 67↓ 78
20K· 12.43 mi
9:16/mi
1:48:36
↑ 106↓ 860.1%
Half· 13.11 mi
8:36/mi
1:54:28
↑ 19↓ 370.5%
25K· 15.53 mi
9:21/mi
2:17:07
↑ 66↓ 880.2%
30K· 18.64 mi
9:36/mi
2:46:55
↑ 181↓ 1480.2%
20M
9:53/mi
3:00:21
↑ 64↓ 500.2%
21M
11:00/mi
3:11:21
↑ 106↓ 241.6%
35K· 21.75 mi
9:19/mi
3:18:19
↑ 17↓ 861.7%
23M
9:45/mi
3:30:31
↑ 23↓ 630.6%
24M
9:03/mi
3:39:34
↓ 821.3%
40K· 24.85 mi
9:35/mi
3:47:46
↓ 200.3%
25.2M
10:12/mi
3:51:17
↑ 13↓ 160.2%
Finish· 26.22 mi
9:18/mi
4:00:46
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:54:28
Pace8:44 /mi
2nd Half
Distance13.11 mi
Time2:06:18
Pace9:38 /mi
📊Positive Split: 10.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:21:5526:138:2626:13
8:26
-
10K
6.21 mi11:47:5852:168:2526:03
8:23
-0:03
15K
9.32 mi12:15:321:19:508:3427:34
8:52
+0:29
20K
12.43 mi12:44:181:48:368:4428:46
9:16
+0:24
Half
13.11 mi12:50:101:54:288:445:52
8:36
-0:40
25K
15.53 mi13:12:492:17:078:5022:39
9:21
+0:45
30K
18.64 mi13:42:372:46:558:5729:48
9:36
+0:15
20M
20.00 mi13:56:033:00:219:0113:26
9:53
+0:17
21M
21.00 mi14:07:033:11:219:0711:00
11:00
+1:07
35K
21.75 mi14:14:013:18:199:076:58
9:19
-1:41
23M
23.00 mi14:26:133:30:319:0912:12
9:45
+0:26
24M
24.00 mi14:35:163:39:349:099:03
9:03
-0:42
40K
24.85 mi14:43:283:47:469:108:12
9:35
+0:32
25.2M
25.20 mi14:46:593:51:179:113:31
10:12
+0:37
Finish
26.22 mi14:56:284:00:469:119:29
9:18
-0:54

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

8:23 /mi

Average Pace

9:11 /mi

Slowest Pace

11:00 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:25:42

36% of race

Time at Steady Pace

1:54:55

48% of race

Time at Slower Pace

40:09

17% of race

Average Pace: 9:11 /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 mi11:21:5526:138:2626:13
8:26
#17154
10K
6.21 mi11:47:5852:168:2526:03
8:23
#17294
15K
9.32 mi12:15:321:19:508:3427:34
8:52
#18267
20K
12.43 mi12:44:181:48:368:4428:46
9:16
#19014
Half
13.11 mi12:50:101:54:288:445:52
8:36
#18981
25K
15.53 mi13:12:492:17:078:5022:39
9:21
#19240
30K
18.64 mi13:42:372:46:558:5729:48
9:36
#19374
20M
20.00 mi13:56:033:00:219:0113:26
9:53
#19453
21M
21.00 mi14:07:033:11:219:0711:00
11:00
#19551
35K
21.75 mi14:14:013:18:199:076:58
9:19
#19557
23M
23.00 mi14:26:133:30:319:0912:12
9:45
#19533
24M
24.00 mi14:35:163:39:349:099:03
9:03
#19449
40K
24.85 mi14:43:283:47:469:108:12
9:35
#19438
25.2M
25.20 mi14:46:593:51:179:113:31
10:12
#19425
Finish
26.22 mi14:56:284:00:469:119:29
9:18
#19439
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF55-59Seg. OverallSeg. FemalesSeg. F55-59
5K3.11 mi3.11 mi171546036603619923(Top 75%)7640(Top 67%)7640(Top 937%)
10K6.21 mi3.10 mi17294-1406113-776113-7717501(Top 66%)6186(Top 54%)6186(Top 759%)
15K9.32 mi3.11 mi18267-9736675-5626675-56219923(Top 75%)7640(Top 67%)7640(Top 937%)
20K12.43 mi3.11 mi19014-7477132-4577132-45720824(Top 78%)8125(Top 71%)8125(Top 997%)
Half13.11 mi0.68 mi18981+337114+187114+1818388(Top 69%)6723(Top 59%)6723(Top 825%)
25K15.53 mi2.42 mi19240-2597262-1487262-14820326(Top 76%)7883(Top 69%)7883(Top 967%)
30K18.64 mi3.11 mi19374-1347359-977359-9719769(Top 74%)7634(Top 67%)7634(Top 937%)
20M20.00 mi1.36 mi19453-797424-657424-6520140(Top 76%)7943(Top 70%)7943(Top 975%)
21M21.00 mi1.00 mi19551-987487-637487-6320834(Top 78%)8370(Top 73%)8370(Top 1027%)
35K21.75 mi0.75 mi19557-67495-87495-819229(Top 72%)7512(Top 66%)7512(Top 922%)
23M23.00 mi1.25 mi19533+247484+117484+1119236(Top 72%)7544(Top 66%)7544(Top 926%)
24M24.00 mi1.00 mi19449+847452+327452+3217486(Top 66%)6634(Top 58%)6634(Top 814%)
40K24.85 mi0.85 mi19438+117454-27454-218674(Top 70%)7315(Top 64%)7315(Top 898%)
25.2M25.20 mi0.35 mi19425+137448+67448+618162(Top 68%)7042(Top 62%)7042(Top 864%)
Finish26.22 mi1.02 mi19439-147464-167464-1619412(Top 73%)7681(Top 67%)7681(Top 942%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 75%
×21story building
+97ft-345ft

Overall

19923

Females

7640

F55-59

7640

5K→10K

3.1 - 6.2 mi

Top 66%
×5story building
+79ft-138ft

Overall

17501

Females

6186

F55-59

6186

10K→15K

6.2 - 9.3 mi

Top 75%
×3story building
+67ft-78ft

Overall

19923

Females

7640

F55-59

7640

15K→20K

9.3 - 12.4 mi

Top 78%
×5story building
+106ft-86ft

Overall

20824

Females

8125

F55-59

8125

20K→Half

12.4 - 13.1 mi

Top 69%
×2story building
+19ft-37ft

Overall

18388

Females

6723

F55-59

6723

Half→25K

13.1 - 15.5 mi

Top 76%
×4story building
+66ft-88ft

Overall

20326

Females

7883

F55-59

7883

25K→30K

15.5 - 18.6 mi

Top 74%
×9story building
+181ft-148ft

Overall

19769

Females

7634

F55-59

7634

30K→20M

18.6 - 20.0 mi

Top 76%
×5story building
+64ft-50ft

Overall

20140

Females

7943

F55-59

7943

20M→21M

20.0 - 21.0 mi

Top 78%
×8story building
+106ft-24ft

Overall

20834

Females

8370

F55-59

8370

21M→35K

21.0 - 21.8 mi

Top 72%
×7story building
+17ft-86ft

Overall

19229

Females

7512

F55-59

7512

35K→23M

21.8 - 23.0 mi

Top 72%
×5story building
+23ft-63ft

Overall

19236

Females

7544

F55-59

7544

23M→24M

23.0 - 24.0 mi

Top 66%
×6story building
+12ft-82ft

Overall

17486

Females

6634

F55-59

6634

24M→40K

24.0 - 24.9 mi

Top 70%
×1story
+6ft-20ft

Overall

18674

Females

7315

F55-59

7315

40K→25.2M

24.9 - 25.2 mi

Top 68%
×1story
+13ft-16ft

Overall

18162

Females

7042

F55-59

7042

25.2M→Finish

25.2 - 26.2 mi

Top 73%
×2story building
+22ft-21ft

Overall

19412

Females

7681

F55-59

7681

Passing Analysis

Category:
Athletes Passed
992
Passed By
3277
Net Change
-2285
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#17154
5K → 10K254394-140#17154#17294
10K → 15K25998-973#17294#18267
15K → 20K27774-747#18267#19014
20K → Half429+33#19014#18981
Half → 25K64323-259#18981#19240
25K → 30K119253-134#19240#19374
30K → 20M63142-79#19374#19453
20M → 21M49147-98#19453#19551
21M → 35K4147-6#19551#19557
35K → 23M8460+24#19557#19533
23M → 24M10319+84#19533#19449
24M → 40K5342+11#19449#19438
40K → 25.2M2815+13#19438#19425
25.2M → Finish4054-14#19425#19439
TOTALS9923277-2285
📊

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