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BOSTON MARATHON 2023

Chunhua Pan

Bib: 21519•F

ON

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 49%
Gender (Female)
#0 / 11423
Top 33%
Masters (Masters Women)
#0 / 6539
Top 20%
Division (F50-54)
#0 / 1207
Top 12%
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
7:54/mi
24:34
↑ 97↓ 3451.5%
10K· 6.21 mi
7:40/mi
48:23
↑ 79↓ 1380.4%
15K· 9.32 mi
7:43/mi
1:12:21
↑ 67↓ 78
20K· 12.43 mi
7:58/mi
1:37:06
↑ 106↓ 860.1%
Half· 13.11 mi
7:53/mi
1:42:29
↑ 19↓ 370.5%
25K· 15.53 mi
8:06/mi
2:02:08
↑ 66↓ 880.2%
30K· 18.64 mi
8:28/mi
2:28:25
↑ 181↓ 1480.2%
20M
8:35/mi
2:40:05
↑ 64↓ 500.2%
21M
9:16/mi
2:49:21
↑ 106↓ 241.6%
35K· 21.75 mi
8:24/mi
2:55:38
↑ 17↓ 861.7%
23M
8:42/mi
3:06:32
↑ 23↓ 630.6%
24M
8:16/mi
3:14:48
↓ 821.3%
40K· 24.85 mi
8:26/mi
3:22:01
↓ 200.3%
25.2M
9:08/mi
3:25:10
↑ 13↓ 160.2%
Finish· 26.22 mi
8:06/mi
3:33:25
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:42:29
Pace7:49 /mi
2nd Half
Distance13.11 mi
Time1:50:56
Pace8:28 /mi
📊Positive Split: 8.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:18:0524:347:5424:34
7:54
-
10K
6.21 mi11:41:5448:237:4723:49
7:40
-0:14
15K
9.32 mi12:05:521:12:217:4623:58
7:43
+0:03
20K
12.43 mi12:30:371:37:067:4924:45
7:58
+0:15
Half
13.11 mi12:36:001:42:297:495:23
7:53
-0:05
25K
15.53 mi12:55:392:02:087:5219:39
8:06
+0:13
30K
18.64 mi13:21:562:28:257:5826:17
8:28
+0:22
20M
20.00 mi13:33:362:40:058:0011:40
8:35
+0:07
21M
21.00 mi13:42:522:49:218:049:16
9:16
+0:41
35K
21.75 mi13:49:092:55:388:056:17
8:24
-0:52
23M
23.00 mi14:00:033:06:328:0710:54
8:42
+0:18
24M
24.00 mi14:08:193:14:488:078:16
8:16
-0:26
40K
24.85 mi14:15:323:22:018:087:13
8:26
+0:10
25.2M
25.20 mi14:18:413:25:108:083:09
9:08
+0:42
Finish
26.22 mi14:26:563:33:258:098:15
8:06
-1:02

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

7:40 /mi

Average Pace

8:09 /mi

Slowest Pace

9:16 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:42:29

48% of race

Time at Steady Pace

1:15:57

36% of race

Time at Slower Pace

34:59

16% of race

Average Pace: 8:08 /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 mi11:18:0524:347:5424:34
7:54
#13318
10K
6.21 mi11:41:5448:237:4723:49
7:40
#12576
15K
9.32 mi12:05:521:12:217:4623:58
7:43
#12341
20K
12.43 mi12:30:371:37:067:4924:45
7:58
#12521
Half
13.11 mi12:36:001:42:297:495:23
7:53
#12558
25K
15.53 mi12:55:392:02:087:5219:39
8:06
#12705
30K
18.64 mi13:21:562:28:257:5826:17
8:28
#13003
20M
20.00 mi13:33:362:40:058:0011:40
8:35
#13089
21M
21.00 mi13:42:522:49:218:049:16
9:16
#13159
35K
21.75 mi13:49:092:55:388:056:17
8:24
#13220
23M
23.00 mi14:00:033:06:328:0710:54
8:42
#13281
24M
24.00 mi14:08:193:14:488:078:16
8:16
#13250
40K
24.85 mi14:15:323:22:018:087:13
8:26
#13221
25.2M
25.20 mi14:18:413:25:108:083:09
9:08
#13194
Finish
26.22 mi14:26:563:33:258:098:15
8:06
#13172
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi133183621362111986(Top 45%)2897(Top 25%)2897(Top 240%)
10K6.21 mi3.10 mi12576+7423198+4233198+42311967(Top 45%)2854(Top 25%)2854(Top 236%)
15K9.32 mi3.11 mi12341+2353089+1093089+10911986(Top 45%)2897(Top 25%)2897(Top 240%)
20K12.43 mi3.11 mi12521-1803210-1213210-12113168(Top 49%)3638(Top 32%)3638(Top 301%)
Half13.11 mi0.68 mi12558-373239-293239-2913556(Top 51%)3832(Top 34%)3832(Top 317%)
25K15.53 mi2.42 mi12705-1473338-993338-9913547(Top 51%)3947(Top 35%)3947(Top 327%)
30K18.64 mi3.11 mi13003-2983550-2123550-21214048(Top 53%)4356(Top 38%)4356(Top 361%)
20M20.00 mi1.36 mi13089-863616-663616-6614165(Top 53%)4507(Top 39%)4507(Top 373%)
21M21.00 mi1.00 mi13159-703670-543670-5414809(Top 56%)4928(Top 43%)4928(Top 408%)
35K21.75 mi0.75 mi13220-613725-553725-5514726(Top 55%)4940(Top 43%)4940(Top 409%)
23M23.00 mi1.25 mi13281-613786-613786-6114419(Top 54%)4856(Top 43%)4856(Top 402%)
24M24.00 mi1.00 mi13250+313793-73793-713078(Top 49%)4167(Top 36%)4167(Top 345%)
40K24.85 mi0.85 mi13221+293790+33790+312999(Top 49%)4203(Top 37%)4203(Top 348%)
25.2M25.20 mi0.35 mi13194+273795-53795-513310(Top 50%)4381(Top 38%)4381(Top 363%)
Finish26.22 mi1.02 mi13172+223801-63801-612771(Top 48%)4095(Top 36%)4095(Top 339%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 45%
×21story building
+97ft-345ft

Overall

11986

Females

2897

F50-54

2897

5K→10K

3.1 - 6.2 mi

Top 45%
×5story building
+79ft-138ft

Overall

11967

Females

2854

F50-54

2854

10K→15K

6.2 - 9.3 mi

Top 45%
×3story building
+67ft-78ft

Overall

11986

Females

2897

F50-54

2897

15K→20K

9.3 - 12.4 mi

Top 49%
×5story building
+106ft-86ft

Overall

13168

Females

3638

F50-54

3638

20K→Half

12.4 - 13.1 mi

Top 51%
×2story building
+19ft-37ft

Overall

13556

Females

3832

F50-54

3832

Half→25K

13.1 - 15.5 mi

Top 51%
×4story building
+66ft-88ft

Overall

13547

Females

3947

F50-54

3947

25K→30K

15.5 - 18.6 mi

Top 53%
×9story building
+181ft-148ft

Overall

14048

Females

4356

F50-54

4356

30K→20M

18.6 - 20.0 mi

Top 53%
×5story building
+64ft-50ft

Overall

14165

Females

4507

F50-54

4507

20M→21M

20.0 - 21.0 mi

Top 56%
×8story building
+106ft-24ft

Overall

14809

Females

4928

F50-54

4928

21M→35K

21.0 - 21.8 mi

Top 55%
×7story building
+17ft-86ft

Overall

14726

Females

4940

F50-54

4940

35K→23M

21.8 - 23.0 mi

Top 54%
×5story building
+23ft-63ft

Overall

14419

Females

4856

F50-54

4856

23M→24M

23.0 - 24.0 mi

Top 49%
×6story building
+12ft-82ft

Overall

13078

Females

4167

F50-54

4167

24M→40K

24.0 - 24.9 mi

Top 49%
×1story
+6ft-20ft

Overall

12999

Females

4203

F50-54

4203

40K→25.2M

24.9 - 25.2 mi

Top 50%
×1story
+13ft-16ft

Overall

13310

Females

4381

F50-54

4381

25.2M→Finish

25.2 - 26.2 mi

Top 48%
×2story building
+22ft-21ft

Overall

12771

Females

4095

F50-54

4095

Passing Analysis

Category:
Athletes Passed
2022
Passed By
1876
Net Change
+146
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#13318
5K → 10K83997+742#13318#12576
10K → 15K33095+235#12576#12341
15K → 20K113293-180#12341#12521
20K → Half2158-37#12521#12558
Half → 25K91238-147#12558#12705
25K → 30K105403-298#12705#13003
30K → 20M55141-86#13003#13089
20M → 21M73143-70#13089#13159
21M → 35K3798-61#13159#13220
35K → 23M75136-61#13220#13281
23M → 24M8352+31#13281#13250
24M → 40K7243+29#13250#13221
40K → 25.2M5225+27#13221#13194
25.2M → Finish7654+22#13194#13172
TOTALS20221876+146
📊

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