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BOSTON MARATHON 2023

Tu Thai

Bib: 27335•F

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Masters (Masters Women)
#0 / 6539
Division (F45-49)
#0 / 1817
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
10:31/mi
32:40
↑ 97↓ 3451.5%
10K· 6.21 mi
10:43/mi
1:05:57
↑ 79↓ 1380.4%
15K· 9.32 mi
11:17/mi
1:40:59
↑ 67↓ 78
20K· 12.43 mi
11:32/mi
2:16:48
↑ 106↓ 860.1%
Half· 13.11 mi
11:14/mi
2:24:28
↑ 19↓ 370.5%
25K· 15.53 mi
11:33/mi
2:52:29
↑ 66↓ 880.2%
30K· 18.64 mi
11:44/mi
3:28:56
↑ 181↓ 1480.2%
20M
11:27/mi
3:44:30
↑ 64↓ 500.2%
21M
12:18/mi
3:56:48
↑ 106↓ 241.6%
35K· 21.75 mi
10:58/mi
4:05:00
↑ 17↓ 861.7%
23M
11:06/mi
4:18:54
↑ 23↓ 630.6%
24M
10:45/mi
4:29:39
↓ 821.3%
40K· 24.85 mi
10:54/mi
4:38:58
↓ 200.3%
25.2M
11:53/mi
4:43:04
↑ 13↓ 160.2%
Finish· 26.22 mi
10:18/mi
4:53:34
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:24:28
Pace11:01 /mi
2nd Half
Distance13.11 mi
Time2:29:06
Pace11:22 /mi
📊Positive Split: 3.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:49:5432:4010:3132:40
10:31
-
10K
6.21 mi12:23:111:05:5710:3733:17
10:43
+0:12
15K
9.32 mi12:58:131:40:5910:5035:02
11:17
+0:34
20K
12.43 mi13:34:022:16:4811:0035:49
11:32
+0:15
Half
13.11 mi13:41:422:24:2811:017:40
11:14
-0:18
25K
15.53 mi14:09:432:52:2911:0628:01
11:33
+0:19
30K
18.64 mi14:46:103:28:5611:1236:27
11:44
+0:11
20M
20.00 mi15:01:443:44:3011:1315:34
11:27
-0:17
21M
21.00 mi15:14:023:56:4811:1712:18
12:18
+0:51
35K
21.75 mi15:22:144:05:0011:168:12
10:58
-1:20
23M
23.00 mi15:36:084:18:5411:1513:54
11:06
+0:08
24M
24.00 mi15:46:534:29:3911:1410:45
10:45
-0:21
40K
24.85 mi15:56:124:38:5811:139:19
10:54
+0:09
25.2M
25.20 mi16:00:184:43:0411:144:06
11:53
+0:59
Finish
26.22 mi16:10:484:53:3411:1210:30
10:18
-1:35

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

10:18 /mi

Average Pace

11:12 /mi

Slowest Pace

12:18 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:41:19

55% of race

Time at Steady Pace

1:59:57

41% of race

Time at Slower Pace

12:18

4% of race

Average Pace: 11:12 /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 mi11:49:5432:4010:3132:40
10:31
#24753
10K
6.21 mi12:23:111:05:5710:3733:17
10:43
#24941
15K
9.32 mi12:58:131:40:5910:5035:02
11:17
#25191
20K
12.43 mi13:34:022:16:4811:0035:49
11:32
#25232
Half
13.11 mi13:41:422:24:2811:017:40
11:14
#25241
25K
15.53 mi14:09:432:52:2911:0628:01
11:33
#25155
30K
18.64 mi14:46:103:28:5611:1236:27
11:44
#24984
20M
20.00 mi15:01:443:44:3011:1315:34
11:27
#24867
21M
21.00 mi15:14:023:56:4811:1712:18
12:18
#24793
35K
21.75 mi15:22:144:05:0011:168:12
10:58
#24748
23M
23.00 mi15:36:084:18:5411:1513:54
11:06
#24641
24M
24.00 mi15:46:534:29:3911:1410:45
10:45
#24558
40K
24.85 mi15:56:124:38:5811:139:19
10:54
#24488
25.2M
25.20 mi16:00:184:43:0411:144:06
11:53
#24461
Finish
26.22 mi16:10:484:53:3411:1210:30
10:18
#24414
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi24753103031030325488(Top 96%)10740(Top 94%)10740(Top 591%)
10K6.21 mi3.10 mi24941-18810402-9910402-9925041(Top 94%)10467(Top 92%)10467(Top 576%)
15K9.32 mi3.11 mi25191-25010547-14510547-14525488(Top 96%)10740(Top 94%)10740(Top 591%)
20K12.43 mi3.11 mi25232-4110587-4010587-4025274(Top 95%)10642(Top 93%)10642(Top 586%)
Half13.11 mi0.68 mi25241-910594-710594-725247(Top 95%)10642(Top 93%)10642(Top 586%)
25K15.53 mi2.42 mi25155+8610556+3810556+3824742(Top 93%)10366(Top 91%)10366(Top 571%)
30K18.64 mi3.11 mi24984+17110478+7810478+7824176(Top 91%)10109(Top 88%)10109(Top 556%)
20M20.00 mi1.36 mi24867+11710426+5210426+5223467(Top 88%)9769(Top 86%)9769(Top 538%)
21M21.00 mi1.00 mi24793+7410386+4010386+4023207(Top 87%)9660(Top 85%)9660(Top 532%)
35K21.75 mi0.75 mi24748+4510364+2210364+2223263(Top 87%)9740(Top 85%)9740(Top 536%)
23M23.00 mi1.25 mi24641+10710311+5310311+5322557(Top 85%)9360(Top 82%)9360(Top 515%)
24M24.00 mi1.00 mi24558+8310279+3210279+3222585(Top 85%)9412(Top 82%)9412(Top 518%)
40K24.85 mi0.85 mi24488+7010243+3610243+3622152(Top 83%)9221(Top 81%)9221(Top 507%)
25.2M25.20 mi0.35 mi24461+2710231+1210231+1222333(Top 84%)9311(Top 82%)9311(Top 512%)
Finish26.22 mi1.02 mi24414+4710210+2110210+2122580(Top 85%)9436(Top 83%)9436(Top 519%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 96%
×21story building
+97ft-345ft

Overall

25488

Females

10740

F45-49

10740

5K→10K

3.1 - 6.2 mi

Top 94%
×5story building
+79ft-138ft

Overall

25041

Females

10467

F45-49

10467

10K→15K

6.2 - 9.3 mi

Top 96%
×3story building
+67ft-78ft

Overall

25488

Females

10740

F45-49

10740

15K→20K

9.3 - 12.4 mi

Top 95%
×5story building
+106ft-86ft

Overall

25274

Females

10642

F45-49

10642

20K→Half

12.4 - 13.1 mi

Top 95%
×2story building
+19ft-37ft

Overall

25247

Females

10642

F45-49

10642

Half→25K

13.1 - 15.5 mi

Top 93%
×4story building
+66ft-88ft

Overall

24742

Females

10366

F45-49

10366

25K→30K

15.5 - 18.6 mi

Top 91%
×9story building
+181ft-148ft

Overall

24176

Females

10109

F45-49

10109

30K→20M

18.6 - 20.0 mi

Top 88%
×5story building
+64ft-50ft

Overall

23467

Females

9769

F45-49

9769

20M→21M

20.0 - 21.0 mi

Top 87%
×8story building
+106ft-24ft

Overall

23207

Females

9660

F45-49

9660

21M→35K

21.0 - 21.8 mi

Top 87%
×7story building
+17ft-86ft

Overall

23263

Females

9740

F45-49

9740

35K→23M

21.8 - 23.0 mi

Top 85%
×5story building
+23ft-63ft

Overall

22557

Females

9360

F45-49

9360

23M→24M

23.0 - 24.0 mi

Top 85%
×6story building
+12ft-82ft

Overall

22585

Females

9412

F45-49

9412

24M→40K

24.0 - 24.9 mi

Top 83%
×1story
+6ft-20ft

Overall

22152

Females

9221

F45-49

9221

40K→25.2M

24.9 - 25.2 mi

Top 84%
×1story
+13ft-16ft

Overall

22333

Females

9311

F45-49

9311

25.2M→Finish

25.2 - 26.2 mi

Top 85%
×2story building
+22ft-21ft

Overall

22580

Females

9436

F45-49

9436

Passing Analysis

Category:
Athletes Passed
1147
Passed By
808
Net Change
+339
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#24753
5K → 10K112300-188#24753#24941
10K → 15K37287-250#24941#25191
15K → 20K78119-41#25191#25232
20K → Half2029-9#25232#25241
Half → 25K12337+86#25241#25155
25K → 30K18514+171#25155#24984
30K → 20M1214+117#24984#24867
20M → 21M795+74#24867#24793
21M → 35K483+45#24793#24748
35K → 23M1092+107#24748#24641
23M → 24M863+83#24641#24558
24M → 40K722+70#24558#24488
40K → 25.2M270+27#24488#24461
25.2M → Finish503+47#24461#24414
TOTALS1147808+339
📊

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