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BOSTON MARATHON 2023

Christine Zhang

Bib: 16955•F

TX

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 40%
Gender (Female)
#0 / 11423
Top 21%
Division (F18-39)
#0 / 4884
Top 37%
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
7:53/mi
24:30
↑ 97↓ 3451.5%
10K· 6.21 mi
7:52/mi
48:56
↑ 79↓ 1380.4%
15K· 9.32 mi
7:50/mi
1:13:17
↑ 67↓ 78
20K· 12.43 mi
7:50/mi
1:37:36
↑ 106↓ 860.1%
Half· 13.11 mi
7:48/mi
1:42:55
↑ 19↓ 370.5%
25K· 15.53 mi
7:50/mi
2:01:55
↑ 66↓ 880.2%
30K· 18.64 mi
7:50/mi
2:26:14
↑ 181↓ 1480.2%
20M
7:49/mi
2:36:51
↑ 64↓ 500.2%
21M
7:59/mi
2:44:50
↑ 106↓ 241.6%
35K· 21.75 mi
7:41/mi
2:50:35
↑ 17↓ 861.7%
23M
7:57/mi
3:00:32
↑ 23↓ 630.6%
24M
7:32/mi
3:08:04
↓ 821.3%
40K· 24.85 mi
7:37/mi
3:14:35
↓ 200.3%
25.2M
8:10/mi
3:17:24
↑ 13↓ 160.2%
Finish· 26.22 mi
7:38/mi
3:25:11
↑ 22↓ 21

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:42:55
Pace7:51 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:42:16
Pace7:48 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:14:4224:307:5324:30
7:53
-
10K
6.21 mi11:39:0848:567:5324:26
7:52
-0:01
15K
9.32 mi12:03:291:13:177:5224:21
7:50
-0:02
20K
12.43 mi12:27:481:37:367:5124:19
7:50
0:00
Half
13.11 mi12:33:071:42:557:515:19
7:48
-0:02
25K
15.53 mi12:52:072:01:557:5119:00
7:50
+0:02
30K
18.64 mi13:16:262:26:147:5124:19
7:50
0:00
20M
20.00 mi13:27:032:36:517:5110:37
7:49
-0:01
21M
21.00 mi13:35:022:44:507:517:59
7:59
+0:10
35K
21.75 mi13:40:472:50:357:515:45
7:41
-0:18
23M
23.00 mi13:50:443:00:327:519:57
7:57
+0:16
24M
24.00 mi13:58:163:08:047:507:32
7:32
-0:25
40K
24.85 mi14:04:473:14:357:506:31
7:37
+0:05
25.2M
25.20 mi14:07:363:17:247:502:49
8:10
+0:33
Finish
26.22 mi14:15:233:25:117:507:47
7:38
-0:32

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

7:32 /mi

Average Pace

7:50 /mi

Slowest Pace

8:10 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:04:26

90% of race

Time at Steady Pace

20:45

10% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:50 /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 mi11:14:4224:307:5324:30
7:53
#13126
10K
6.21 mi11:39:0848:567:5324:26
7:52
#13388
15K
9.32 mi12:03:291:13:177:5224:21
7:50
#13250
20K
12.43 mi12:27:481:37:367:5124:19
7:50
#12884
Half
13.11 mi12:33:071:42:557:515:19
7:48
#12871
25K
15.53 mi12:52:072:01:557:5119:00
7:50
#12581
30K
18.64 mi13:16:262:26:147:5124:19
7:50
#11988
20M
20.00 mi13:27:032:36:517:5110:37
7:49
#11731
21M
21.00 mi13:35:022:44:507:517:59
7:59
#11418
35K
21.75 mi13:40:472:50:357:515:45
7:41
#11334
23M
23.00 mi13:50:443:00:327:519:57
7:57
#11204
24M
24.00 mi13:58:163:08:047:507:32
7:32
#11033
40K
24.85 mi14:04:473:14:357:506:31
7:37
#10867
25.2M
25.20 mi14:07:363:17:247:502:49
8:10
#10795
Finish
26.22 mi14:15:233:25:117:507:47
7:38
#10715
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi131263511351113035(Top 49%)3494(Top 31%)3494(Top 72%)
10K6.21 mi3.10 mi13388-2623674-1633674-16313681(Top 51%)3841(Top 34%)3841(Top 79%)
15K9.32 mi3.11 mi13250+1383605+693605+6913035(Top 49%)3494(Top 31%)3494(Top 72%)
20K12.43 mi3.11 mi12884+3663410+1953410+19511965(Top 45%)2948(Top 26%)2948(Top 60%)
Half13.11 mi0.68 mi12871+133404+63404+612661(Top 48%)3267(Top 29%)3267(Top 67%)
25K15.53 mi2.42 mi12581+2903271+1333271+13311400(Top 43%)2712(Top 24%)2712(Top 56%)
30K18.64 mi3.11 mi11988+5932968+3032968+3039588(Top 36%)1966(Top 17%)1966(Top 40%)
20M20.00 mi1.36 mi11731+2572843+1252843+1258998(Top 34%)1803(Top 16%)1803(Top 37%)
21M21.00 mi1.00 mi11418+3132679+1642679+1647296(Top 27%)1246(Top 11%)1246(Top 26%)
35K21.75 mi0.75 mi11334+842645+342645+349877(Top 37%)2302(Top 20%)2302(Top 47%)
23M23.00 mi1.25 mi11204+1302605+402605+409418(Top 35%)2227(Top 19%)2227(Top 46%)
24M24.00 mi1.00 mi11033+1712543+622543+627973(Top 30%)1673(Top 15%)1673(Top 34%)
40K24.85 mi0.85 mi10867+1662487+562487+567496(Top 28%)1569(Top 14%)1569(Top 32%)
25.2M25.20 mi0.35 mi10795+722461+262461+267603(Top 29%)1673(Top 15%)1673(Top 34%)
Finish26.22 mi1.02 mi10715+802454+72454+79574(Top 36%)2504(Top 22%)2504(Top 51%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 49%
×21story building
+97ft-345ft

Overall

13035

Females

3494

F18-39

3494

5K→10K

3.1 - 6.2 mi

Top 51%
×5story building
+79ft-138ft

Overall

13681

Females

3841

F18-39

3841

10K→15K

6.2 - 9.3 mi

Top 49%
×3story building
+67ft-78ft

Overall

13035

Females

3494

F18-39

3494

15K→20K

9.3 - 12.4 mi

Top 45%
×5story building
+106ft-86ft

Overall

11965

Females

2948

F18-39

2948

20K→Half

12.4 - 13.1 mi

Top 48%
×2story building
+19ft-37ft

Overall

12661

Females

3267

F18-39

3267

Half→25K

13.1 - 15.5 mi

Top 43%
×4story building
+66ft-88ft

Overall

11400

Females

2712

F18-39

2712

25K→30K

15.5 - 18.6 mi

Top 36%
×9story building
+181ft-148ft

Overall

9588

Females

1966

F18-39

1966

30K→20M

18.6 - 20.0 mi

Top 34%
×5story building
+64ft-50ft

Overall

8998

Females

1803

F18-39

1803

20M→21M

20.0 - 21.0 mi

Top 27%
×8story building
+106ft-24ft

Overall

7296

Females

1246

F18-39

1246

21M→35K

21.0 - 21.8 mi

Top 37%
×7story building
+17ft-86ft

Overall

9877

Females

2302

F18-39

2302

35K→23M

21.8 - 23.0 mi

Top 35%
×5story building
+23ft-63ft

Overall

9418

Females

2227

F18-39

2227

23M→24M

23.0 - 24.0 mi

Top 30%
×6story building
+12ft-82ft

Overall

7973

Females

1673

F18-39

1673

24M→40K

24.0 - 24.9 mi

Top 28%
×1story
+6ft-20ft

Overall

7496

Females

1569

F18-39

1569

40K→25.2M

24.9 - 25.2 mi

Top 29%
×1story
+13ft-16ft

Overall

7603

Females

1673

F18-39

1673

25.2M→Finish

25.2 - 26.2 mi

Top 36%
×2story building
+22ft-21ft

Overall

9574

Females

2504

F18-39

2504

Passing Analysis

Category:
Athletes Passed
3224
Passed By
813
Net Change
+2411
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#13126
5K → 10K190452-262#13126#13388
10K → 15K282144+138#13388#13250
15K → 20K40640+366#13250#12884
20K → Half4330+13#12884#12871
Half → 25K31121+290#12871#12581
25K → 30K60310+593#12581#11988
30K → 20M2669+257#11988#11731
20M → 21M3141+313#11731#11418
21M → 35K9915+84#11418#11334
35K → 23M15828+130#11334#11204
23M → 24M18413+171#11204#11033
24M → 40K1715+166#11033#10867
40K → 25.2M764+72#10867#10795
25.2M → Finish12141+80#10795#10715
TOTALS3224813+2411
📊

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