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BOSTON MARATHON 2023

Qiuhong Sun

Bib: 18067•F

CA

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Top 49%
Masters (Masters Women)
#0 / 6539
Top 39%
Division (F50-54)
#0 / 1207
Top 31%
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
8:33/mi
26:35
↑ 97↓ 3451.5%
10K· 6.21 mi
8:34/mi
53:11
↑ 79↓ 1380.4%
15K· 9.32 mi
8:36/mi
1:19:55
↑ 67↓ 78
20K· 12.43 mi
8:39/mi
1:46:49
↑ 106↓ 860.1%
Half· 13.11 mi
8:32/mi
1:52:38
↑ 19↓ 370.5%
25K· 15.53 mi
8:27/mi
2:13:08
↑ 66↓ 880.2%
30K· 18.64 mi
8:38/mi
2:39:57
↑ 181↓ 1480.2%
20M
8:40/mi
2:51:43
↑ 64↓ 500.2%
21M
9:30/mi
3:01:13
↑ 106↓ 241.6%
35K· 21.75 mi
8:05/mi
3:07:16
↑ 17↓ 861.7%
23M
8:30/mi
3:17:55
↑ 23↓ 630.6%
24M
8:13/mi
3:26:08
↓ 821.3%
40K· 24.85 mi
8:28/mi
3:33:22
↓ 200.3%
25.2M
10:06/mi
3:36:51
↑ 13↓ 160.2%
Finish· 26.22 mi
8:18/mi
3:45:18
↑ 22↓ 21

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:52:38
Pace8:35 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:52:40
Pace8:36 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:17:5626:358:3326:35
8:33
-
10K
6.21 mi11:44:3253:118:3426:36
8:34
+0:01
15K
9.32 mi12:11:161:19:558:3426:44
8:36
+0:02
20K
12.43 mi12:38:101:46:498:3626:54
8:39
+0:03
Half
13.11 mi12:43:591:52:388:355:49
8:32
-0:07
25K
15.53 mi13:04:292:13:088:3420:30
8:27
-0:05
30K
18.64 mi13:31:182:39:578:3526:49
8:38
+0:11
20M
20.00 mi13:43:042:51:438:3511:46
8:40
+0:02
21M
21.00 mi13:52:343:01:138:389:30
9:30
+0:50
35K
21.75 mi13:58:373:07:168:376:03
8:05
-1:25
23M
23.00 mi14:09:163:17:558:3610:39
8:30
+0:25
24M
24.00 mi14:17:293:26:088:358:13
8:13
-0:17
40K
24.85 mi14:24:433:33:228:357:14
8:28
+0:15
25.2M
25.20 mi14:28:123:36:518:363:29
10:06
+1:38
Finish
26.22 mi14:36:393:45:188:368:27
8:18
-1:48

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

8:05 /mi

Average Pace

8:36 /mi

Slowest Pace

10:06 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

22:43

10% of race

Time at Steady Pace

3:09:36

84% of race

Time at Slower Pace

12:59

6% of race

Average Pace: 8:36 /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 mi11:17:5626:358:3326:35
8:33
#17939
10K
6.21 mi11:44:3253:118:3426:36
8:34
#18250
15K
9.32 mi12:11:161:19:558:3426:44
8:36
#18323
20K
12.43 mi12:38:101:46:498:3626:54
8:39
#18175
Half
13.11 mi12:43:591:52:388:355:49
8:32
#18154
25K
15.53 mi13:04:292:13:088:3420:30
8:27
#17752
30K
18.64 mi13:31:182:39:578:3526:49
8:38
#17245
20M
20.00 mi13:43:042:51:438:3511:46
8:40
#17045
21M
21.00 mi13:52:343:01:138:389:30
9:30
#16964
35K
21.75 mi13:58:373:07:168:376:03
8:05
#16823
23M
23.00 mi14:09:163:17:558:3610:39
8:30
#16610
24M
24.00 mi14:17:293:26:088:358:13
8:13
#16457
40K
24.85 mi14:24:433:33:228:357:14
8:28
#16282
25.2M
25.20 mi14:28:123:36:518:363:29
10:06
#16315
Finish
26.22 mi14:36:393:45:188:368:27
8:18
#16243
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi179396513651318475(Top 69%)6778(Top 59%)6778(Top 562%)
10K6.21 mi3.10 mi18250-3116667-1546667-15418639(Top 70%)6855(Top 60%)6855(Top 568%)
15K9.32 mi3.11 mi18323-736704-376704-3718475(Top 69%)6778(Top 59%)6778(Top 562%)
20K12.43 mi3.11 mi18175+1486613+916613+9117860(Top 67%)6425(Top 56%)6425(Top 532%)
Half13.11 mi0.68 mi18154+216604+96604+917849(Top 67%)6378(Top 56%)6378(Top 528%)
25K15.53 mi2.42 mi17752+4026382+2226382+22215949(Top 60%)5414(Top 47%)5414(Top 449%)
30K18.64 mi3.11 mi17245+5076107+2756107+27515130(Top 57%)5021(Top 44%)5021(Top 416%)
20M20.00 mi1.36 mi17045+2005995+1125995+11214654(Top 55%)4806(Top 42%)4806(Top 398%)
21M21.00 mi1.00 mi16964+815969+265969+2615974(Top 60%)5618(Top 49%)5618(Top 465%)
35K21.75 mi0.75 mi16823+1415887+825887+8212780(Top 48%)3887(Top 34%)3887(Top 322%)
23M23.00 mi1.25 mi16610+2135796+915796+9113312(Top 50%)4254(Top 37%)4254(Top 352%)
24M24.00 mi1.00 mi16457+1535725+715725+7112775(Top 48%)4015(Top 35%)4015(Top 333%)
40K24.85 mi0.85 mi16282+1755645+805645+8013130(Top 49%)4286(Top 38%)4286(Top 355%)
25.2M25.20 mi0.35 mi16315-335668-235668-2317788(Top 67%)6838(Top 60%)6838(Top 567%)
Finish26.22 mi1.02 mi16243+725631+375631+3714096(Top 53%)4800(Top 42%)4800(Top 398%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 69%
×21story building
+97ft-345ft

Overall

18475

Females

6778

F50-54

6778

5K→10K

3.1 - 6.2 mi

Top 70%
×5story building
+79ft-138ft

Overall

18639

Females

6855

F50-54

6855

10K→15K

6.2 - 9.3 mi

Top 69%
×3story building
+67ft-78ft

Overall

18475

Females

6778

F50-54

6778

15K→20K

9.3 - 12.4 mi

Top 67%
×5story building
+106ft-86ft

Overall

17860

Females

6425

F50-54

6425

20K→Half

12.4 - 13.1 mi

Top 67%
×2story building
+19ft-37ft

Overall

17849

Females

6378

F50-54

6378

Half→25K

13.1 - 15.5 mi

Top 60%
×4story building
+66ft-88ft

Overall

15949

Females

5414

F50-54

5414

25K→30K

15.5 - 18.6 mi

Top 57%
×9story building
+181ft-148ft

Overall

15130

Females

5021

F50-54

5021

30K→20M

18.6 - 20.0 mi

Top 55%
×5story building
+64ft-50ft

Overall

14654

Females

4806

F50-54

4806

20M→21M

20.0 - 21.0 mi

Top 60%
×8story building
+106ft-24ft

Overall

15974

Females

5618

F50-54

5618

21M→35K

21.0 - 21.8 mi

Top 48%
×7story building
+17ft-86ft

Overall

12780

Females

3887

F50-54

3887

35K→23M

21.8 - 23.0 mi

Top 50%
×5story building
+23ft-63ft

Overall

13312

Females

4254

F50-54

4254

23M→24M

23.0 - 24.0 mi

Top 48%
×6story building
+12ft-82ft

Overall

12775

Females

4015

F50-54

4015

24M→40K

24.0 - 24.9 mi

Top 49%
×1story
+6ft-20ft

Overall

13130

Females

4286

F50-54

4286

40K→25.2M

24.9 - 25.2 mi

Top 67%
×1story
+13ft-16ft

Overall

17788

Females

6838

F50-54

6838

25.2M→Finish

25.2 - 26.2 mi

Top 53%
×2story building
+22ft-21ft

Overall

14096

Females

4800

F50-54

4800

Passing Analysis

Category:
Athletes Passed
2700
Passed By
1004
Net Change
+1696
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#17939
5K → 10K177488-311#17939#18250
10K → 15K161234-73#18250#18323
15K → 20K23183+148#18323#18175
20K → Half3817+21#18175#18154
Half → 25K4097+402#18154#17752
25K → 30K52316+507#17752#17245
30K → 20M2044+200#17245#17045
20M → 21M12746+81#17045#16964
21M → 35K1410+141#16964#16823
35K → 23M22310+213#16823#16610
23M → 24M16411+153#16610#16457
24M → 40K1849+175#16457#16282
40K → 25.2M2154-33#16282#16315
25.2M → Finish9725+72#16315#16243
TOTALS27001004+1696
📊

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