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BOSTON MARATHON 2023

Yingju Chiang

Bib: 10326•F

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 41%
Gender (Female)
#0 / 11423
Top 23%
Masters (Masters Women)
#0 / 6539
Top 11%
Division (F40-44)
#0 / 1878
Top 22%
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
7:24/mi
22:58
↑ 97↓ 3451.5%
10K· 6.21 mi
7:29/mi
46:12
↑ 79↓ 1380.4%
15K· 9.32 mi
7:36/mi
1:09:49
↑ 67↓ 78
20K· 12.43 mi
7:50/mi
1:34:10
↑ 106↓ 860.1%
Half· 13.11 mi
7:49/mi
1:39:30
↑ 19↓ 370.5%
25K· 15.53 mi
7:55/mi
1:58:42
↑ 66↓ 880.2%
30K· 18.64 mi
8:21/mi
2:24:40
↑ 181↓ 1480.2%
20M
8:10/mi
2:35:46
↑ 64↓ 500.2%
21M
8:59/mi
2:44:45
↑ 106↓ 241.6%
35K· 21.75 mi
7:38/mi
2:50:28
↑ 17↓ 861.7%
23M
7:58/mi
3:00:26
↑ 23↓ 630.6%
24M
7:47/mi
3:08:13
↓ 821.3%
40K· 24.85 mi
7:58/mi
3:15:02
↓ 200.3%
25.2M
8:45/mi
3:18:03
↑ 13↓ 160.2%
Finish· 26.22 mi
7:52/mi
3:26:04
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:39:30
Pace7:35 /mi
2nd Half
Distance13.11 mi
Time1:46:34
Pace8:08 /mi
📊Positive Split: 7.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:49:1322:587:2422:58
7:24
-
10K
6.21 mi11:12:2746:127:2623:14
7:29
+0:05
15K
9.32 mi11:36:041:09:497:2923:37
7:36
+0:07
20K
12.43 mi12:00:251:34:107:3524:21
7:50
+0:14
Half
13.11 mi12:05:451:39:307:355:20
7:49
-0:01
25K
15.53 mi12:24:571:58:427:3819:12
7:55
+0:06
30K
18.64 mi12:50:552:24:407:4625:58
8:21
+0:26
20M
20.00 mi13:02:012:35:467:4711:06
8:10
-0:11
21M
21.00 mi13:11:002:44:457:518:59
8:59
+0:49
35K
21.75 mi13:16:432:50:287:505:43
7:38
-1:21
23M
23.00 mi13:26:413:00:267:519:58
7:58
+0:20
24M
24.00 mi13:34:283:08:137:517:47
7:47
-0:11
40K
24.85 mi13:41:173:15:027:516:49
7:58
+0:11
25.2M
25.20 mi13:44:183:18:037:523:01
8:45
+0:47
Finish
26.22 mi13:52:193:26:047:528:01
7:52
-0:53

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

7:24 /mi

Average Pace

7:52 /mi

Slowest Pace

8:59 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:15:32

37% of race

Time at Steady Pace

1:21:28

40% of race

Time at Slower Pace

49:04

24% of race

Average Pace: 7:52 /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 mi10:49:1322:587:2422:58
7:24
#8787
10K
6.21 mi11:12:2746:127:2623:14
7:29
#9466
15K
9.32 mi11:36:041:09:497:2923:37
7:36
#9954
20K
12.43 mi12:00:251:34:107:3524:21
7:50
#10496
Half
13.11 mi12:05:451:39:307:355:20
7:49
#10642
25K
15.53 mi12:24:571:58:427:3819:12
7:55
#10833
30K
18.64 mi12:50:552:24:407:4625:58
8:21
#11254
20M
20.00 mi13:02:012:35:467:4711:06
8:10
#11259
21M
21.00 mi13:11:002:44:457:518:59
8:59
#11380
35K
21.75 mi13:16:432:50:287:505:43
7:38
#11299
23M
23.00 mi13:26:413:00:267:519:58
7:58
#11166
24M
24.00 mi13:34:283:08:137:517:47
7:47
#11095
40K
24.85 mi13:41:173:15:027:516:49
7:58
#11022
25.2M
25.20 mi13:44:183:18:037:523:01
8:45
#11001
Finish
26.22 mi13:52:193:26:047:528:01
7:52
#10998
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi87871308130811047(Top 41%)2376(Top 21%)2376(Top 127%)
10K6.21 mi3.10 mi9466-6791598-2901598-29010292(Top 39%)1955(Top 17%)1955(Top 104%)
15K9.32 mi3.11 mi9954-4881808-2101808-21011047(Top 41%)2376(Top 21%)2376(Top 127%)
20K12.43 mi3.11 mi10496-5422070-2622070-26212054(Top 45%)2997(Top 26%)2997(Top 160%)
Half13.11 mi0.68 mi10642-1462151-812151-8112871(Top 48%)3400(Top 30%)3400(Top 181%)
25K15.53 mi2.42 mi10833-1912268-1172268-11712053(Top 45%)3103(Top 27%)3103(Top 165%)
30K18.64 mi3.11 mi11254-4212565-2972565-29713406(Top 50%)3974(Top 35%)3974(Top 212%)
20M20.00 mi1.36 mi11259-52575-102575-1011476(Top 43%)2982(Top 26%)2982(Top 159%)
21M21.00 mi1.00 mi11380-1212660-852660-8513318(Top 50%)4105(Top 36%)4105(Top 219%)
35K21.75 mi0.75 mi11299+812629+312629+319607(Top 36%)2192(Top 19%)2192(Top 117%)
23M23.00 mi1.25 mi11166+1332585+442585+449512(Top 36%)2277(Top 20%)2277(Top 121%)
24M24.00 mi1.00 mi11095+712573+122573+129691(Top 36%)2440(Top 21%)2440(Top 130%)
40K24.85 mi0.85 mi11022+732565+82565+89908(Top 37%)2606(Top 23%)2606(Top 139%)
25.2M25.20 mi0.35 mi11001+212568-32568-311066(Top 42%)3224(Top 28%)3224(Top 172%)
Finish26.22 mi1.02 mi10998+32593-252593-2511176(Top 42%)3282(Top 29%)3282(Top 175%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 41%
×21story building
+97ft-345ft

Overall

11047

Females

2376

F40-44

2376

5K→10K

3.1 - 6.2 mi

Top 39%
×5story building
+79ft-138ft

Overall

10292

Females

1955

F40-44

1955

10K→15K

6.2 - 9.3 mi

Top 41%
×3story building
+67ft-78ft

Overall

11047

Females

2376

F40-44

2376

15K→20K

9.3 - 12.4 mi

Top 45%
×5story building
+106ft-86ft

Overall

12054

Females

2997

F40-44

2997

20K→Half

12.4 - 13.1 mi

Top 48%
×2story building
+19ft-37ft

Overall

12871

Females

3400

F40-44

3400

Half→25K

13.1 - 15.5 mi

Top 45%
×4story building
+66ft-88ft

Overall

12053

Females

3103

F40-44

3103

25K→30K

15.5 - 18.6 mi

Top 50%
×9story building
+181ft-148ft

Overall

13406

Females

3974

F40-44

3974

30K→20M

18.6 - 20.0 mi

Top 43%
×5story building
+64ft-50ft

Overall

11476

Females

2982

F40-44

2982

20M→21M

20.0 - 21.0 mi

Top 50%
×8story building
+106ft-24ft

Overall

13318

Females

4105

F40-44

4105

21M→35K

21.0 - 21.8 mi

Top 36%
×7story building
+17ft-86ft

Overall

9607

Females

2192

F40-44

2192

35K→23M

21.8 - 23.0 mi

Top 36%
×5story building
+23ft-63ft

Overall

9512

Females

2277

F40-44

2277

23M→24M

23.0 - 24.0 mi

Top 36%
×6story building
+12ft-82ft

Overall

9691

Females

2440

F40-44

2440

24M→40K

24.0 - 24.9 mi

Top 37%
×1story
+6ft-20ft

Overall

9908

Females

2606

F40-44

2606

40K→25.2M

24.9 - 25.2 mi

Top 42%
×1story
+13ft-16ft

Overall

11066

Females

3224

F40-44

3224

25.2M→Finish

25.2 - 26.2 mi

Top 42%
×2story building
+22ft-21ft

Overall

11176

Females

3282

F40-44

3282

Passing Analysis

Category:
Athletes Passed
1054
Passed By
3263
Net Change
-2211
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#8787
5K → 10K70749-679#8787#9466
10K → 15K56543-488#9466#9954
15K → 20K39580-542#9954#10496
20K → Half6152-146#10496#10642
Half → 25K71262-191#10642#10833
25K → 30K89510-421#10833#11254
30K → 20M9499-5#11254#11259
20M → 21M50171-121#11259#11380
21M → 35K9817+81#11380#11299
35K → 23M15623+133#11299#11166
23M → 24M11342+71#11166#11095
24M → 40K10532+73#11095#11022
40K → 25.2M4019+21#11022#11001
25.2M → Finish6764+3#11001#10998
TOTALS10543263-2211
📊

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