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BOSTON MARATHON 2023

Xiali He

Bib: 17785•F

MA

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 46%
Gender (Female)
#0 / 11423
Top 28%
Masters (Masters Women)
#0 / 6539
Top 15%
Division (F45-49)
#0 / 1817
Top 16%
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
7:46/mi
24:09
↑ 97↓ 3451.5%
10K· 6.21 mi
7:51/mi
48:31
↑ 79↓ 1380.4%
15K· 9.32 mi
7:47/mi
1:12:42
↑ 67↓ 78
20K· 12.43 mi
7:53/mi
1:37:12
↑ 106↓ 860.1%
Half· 13.11 mi
7:49/mi
1:42:32
↑ 19↓ 370.5%
25K· 15.53 mi
7:58/mi
2:01:52
↑ 66↓ 880.2%
30K· 18.64 mi
8:06/mi
2:27:01
↑ 181↓ 1480.2%
20M
8:10/mi
2:38:07
↑ 64↓ 500.2%
21M
8:43/mi
2:46:50
↑ 106↓ 241.6%
35K· 21.75 mi
7:53/mi
2:52:44
↑ 17↓ 861.7%
23M
8:19/mi
3:03:09
↑ 23↓ 630.6%
24M
8:04/mi
3:11:13
↓ 821.3%
40K· 24.85 mi
8:16/mi
3:18:17
↓ 200.3%
25.2M
9:02/mi
3:21:24
↑ 13↓ 160.2%
Finish· 26.22 mi
8:06/mi
3:29:39
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:42:32
Pace7:49 /mi
2nd Half
Distance13.11 mi
Time1:47:07
Pace8:10 /mi
📊Positive Split: 4.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:14:5624:097:4624:09
7:46
-
10K
6.21 mi11:39:1848:317:4824:22
7:51
+0:05
15K
9.32 mi12:03:291:12:427:4824:11
7:47
-0:04
20K
12.43 mi12:27:591:37:127:4924:30
7:53
+0:06
Half
13.11 mi12:33:191:42:327:495:20
7:49
-0:04
25K
15.53 mi12:52:392:01:527:5119:20
7:58
+0:09
30K
18.64 mi13:17:482:27:017:5325:09
8:06
+0:08
20M
20.00 mi13:28:542:38:077:5411:06
8:10
+0:04
21M
21.00 mi13:37:372:46:507:578:43
8:43
+0:33
35K
21.75 mi13:43:312:52:447:575:54
7:53
-0:50
23M
23.00 mi13:53:563:03:097:5810:25
8:19
+0:26
24M
24.00 mi14:02:003:11:137:588:04
8:04
-0:15
40K
24.85 mi14:09:043:18:177:597:04
8:16
+0:12
25.2M
25.20 mi14:12:113:21:248:003:07
9:02
+0:46
Finish
26.22 mi14:20:263:29:398:008:15
8:06
-0:56

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

7:46 /mi

Average Pace

8:00 /mi

Slowest Pace

9:02 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:17:49

94% of race

Time at Steady Pace

11:50

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:00 /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 mi11:14:5624:097:4624:09
7:46
#12128
10K
6.21 mi11:39:1848:317:4824:22
7:51
#12782
15K
9.32 mi12:03:291:12:427:4824:11
7:47
#12686
20K
12.43 mi12:27:591:37:127:4924:30
7:53
#12595
Half
13.11 mi12:33:191:42:327:495:20
7:49
#12587
25K
15.53 mi12:52:392:01:527:5119:20
7:58
#12555
30K
18.64 mi13:17:482:27:017:5325:09
8:06
#12362
20M
20.00 mi13:28:542:38:077:5411:06
8:10
#12259
21M
21.00 mi13:37:372:46:507:578:43
8:43
#12219
35K
21.75 mi13:43:312:52:447:575:54
7:53
#12175
23M
23.00 mi13:53:563:03:097:5810:25
8:19
#12164
24M
24.00 mi14:02:003:11:137:588:04
8:04
#12141
40K
24.85 mi14:09:043:18:177:597:04
8:16
#12112
25.2M
25.20 mi14:12:113:21:248:003:07
9:02
#12113
Finish
26.22 mi14:20:263:29:398:008:15
8:06
#12148
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi121282941294112607(Top 47%)3242(Top 28%)3242(Top 178%)
10K6.21 mi3.10 mi12782-6543302-3613302-36113497(Top 51%)3721(Top 33%)3721(Top 205%)
15K9.32 mi3.11 mi12686+963273+293273+2912607(Top 47%)3242(Top 28%)3242(Top 178%)
20K12.43 mi3.11 mi12595+913258+153258+1512510(Top 47%)3264(Top 29%)3264(Top 180%)
Half13.11 mi0.68 mi12587+83256+23256+212908(Top 48%)3437(Top 30%)3437(Top 189%)
25K15.53 mi2.42 mi12555+323258-23258-212538(Top 47%)3378(Top 30%)3378(Top 186%)
30K18.64 mi3.11 mi12362+1933184+743184+7411612(Top 44%)2968(Top 26%)2968(Top 163%)
20M20.00 mi1.36 mi12259+1033136+483136+4811498(Top 43%)3004(Top 26%)3004(Top 165%)
21M21.00 mi1.00 mi12219+403136313611785(Top 44%)3291(Top 29%)3291(Top 181%)
35K21.75 mi0.75 mi12175+443129+73129+711341(Top 43%)3048(Top 27%)3048(Top 168%)
23M23.00 mi1.25 mi12164+113150-213150-2112054(Top 45%)3543(Top 31%)3543(Top 195%)
24M24.00 mi1.00 mi12141+233156-63156-611718(Top 44%)3437(Top 30%)3437(Top 189%)
40K24.85 mi0.85 mi12112+293164-83164-811816(Top 44%)3563(Top 31%)3563(Top 196%)
25.2M25.20 mi0.35 mi12113-13170-63170-612770(Top 48%)4103(Top 36%)4103(Top 226%)
Finish26.22 mi1.02 mi12148-353207-373207-3712760(Top 48%)4084(Top 36%)4084(Top 225%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 47%
×21story building
+97ft-345ft

Overall

12607

Females

3242

F45-49

3242

5K→10K

3.1 - 6.2 mi

Top 51%
×5story building
+79ft-138ft

Overall

13497

Females

3721

F45-49

3721

10K→15K

6.2 - 9.3 mi

Top 47%
×3story building
+67ft-78ft

Overall

12607

Females

3242

F45-49

3242

15K→20K

9.3 - 12.4 mi

Top 47%
×5story building
+106ft-86ft

Overall

12510

Females

3264

F45-49

3264

20K→Half

12.4 - 13.1 mi

Top 48%
×2story building
+19ft-37ft

Overall

12908

Females

3437

F45-49

3437

Half→25K

13.1 - 15.5 mi

Top 47%
×4story building
+66ft-88ft

Overall

12538

Females

3378

F45-49

3378

25K→30K

15.5 - 18.6 mi

Top 44%
×9story building
+181ft-148ft

Overall

11612

Females

2968

F45-49

2968

30K→20M

18.6 - 20.0 mi

Top 43%
×5story building
+64ft-50ft

Overall

11498

Females

3004

F45-49

3004

20M→21M

20.0 - 21.0 mi

Top 44%
×8story building
+106ft-24ft

Overall

11785

Females

3291

F45-49

3291

21M→35K

21.0 - 21.8 mi

Top 43%
×7story building
+17ft-86ft

Overall

11341

Females

3048

F45-49

3048

35K→23M

21.8 - 23.0 mi

Top 45%
×5story building
+23ft-63ft

Overall

12054

Females

3543

F45-49

3543

23M→24M

23.0 - 24.0 mi

Top 44%
×6story building
+12ft-82ft

Overall

11718

Females

3437

F45-49

3437

24M→40K

24.0 - 24.9 mi

Top 44%
×1story
+6ft-20ft

Overall

11816

Females

3563

F45-49

3563

40K→25.2M

24.9 - 25.2 mi

Top 48%
×1story
+13ft-16ft

Overall

12770

Females

4103

F45-49

4103

25.2M→Finish

25.2 - 26.2 mi

Top 48%
×2story building
+22ft-21ft

Overall

12760

Females

4084

F45-49

4084

Passing Analysis

Category:
Athletes Passed
1722
Passed By
1742
Net Change
-20
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#12128
5K → 10K96750-654#12128#12782
10K → 15K261165+96#12782#12686
15K → 20K226135+91#12686#12595
20K → Half3426+8#12595#12587
Half → 25K145113+32#12587#12555
25K → 30K296103+193#12555#12362
30K → 20M14845+103#12362#12259
20M → 21M10666+40#12259#12219
21M → 35K6824+44#12219#12175
35K → 23M9483+11#12175#12164
23M → 24M7552+23#12164#12141
24M → 40K8152+29#12141#12112
40K → 25.2M2930-1#12112#12113
25.2M → Finish6398-35#12113#12148
TOTALS17221742-20
📊

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