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BOSTON MARATHON 2023

Thai Trang

Bib: 21512•F

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Top 42%
Masters (Masters Women)
#0 / 6539
Top 29%
Division (F45-49)
#0 / 1817
Top 33%
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
8:15/mi
25:37
↑ 97↓ 3451.5%
10K· 6.21 mi
8:19/mi
51:28
↑ 79↓ 1380.4%
15K· 9.32 mi
8:18/mi
1:17:15
↑ 67↓ 78
20K· 12.43 mi
8:17/mi
1:42:59
↑ 106↓ 860.1%
Half· 13.11 mi
8:14/mi
1:48:36
↑ 19↓ 370.5%
25K· 15.53 mi
8:19/mi
2:08:47
↑ 66↓ 880.2%
30K· 18.64 mi
8:41/mi
2:35:46
↑ 181↓ 1480.2%
20M
8:37/mi
2:47:28
↑ 64↓ 500.2%
21M
9:08/mi
2:56:36
↑ 106↓ 241.6%
35K· 21.75 mi
8:01/mi
3:02:36
↑ 17↓ 861.7%
23M
8:24/mi
3:13:07
↑ 23↓ 630.6%
24M
7:57/mi
3:21:04
↓ 821.3%
40K· 24.85 mi
8:09/mi
3:28:02
↓ 200.3%
25.2M
8:54/mi
3:31:06
↑ 13↓ 160.2%
Finish· 26.22 mi
8:03/mi
3:39:18
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:48:36
Pace8:17 /mi
2nd Half
Distance13.11 mi
Time1:50:42
Pace8:27 /mi
📊Positive Split: 1.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:18:3925:378:1525:37
8:15
-
10K
6.21 mi11:44:3051:288:1725:51
8:19
+0:04
15K
9.32 mi12:10:171:17:158:1725:47
8:18
-0:01
20K
12.43 mi12:36:011:42:598:1725:44
8:17
-0:01
Half
13.11 mi12:41:381:48:368:175:37
8:14
-0:03
25K
15.53 mi13:01:492:08:478:1720:11
8:19
+0:05
30K
18.64 mi13:28:482:35:468:2126:59
8:41
+0:22
20M
20.00 mi13:40:302:47:288:2211:42
8:37
-0:04
21M
21.00 mi13:49:382:56:368:259:08
9:08
+0:31
35K
21.75 mi13:55:383:02:368:246:00
8:01
-1:07
23M
23.00 mi14:06:093:13:078:2410:31
8:24
+0:23
24M
24.00 mi14:14:063:21:048:237:57
7:57
-0:27
40K
24.85 mi14:21:043:28:028:226:58
8:09
+0:12
25.2M
25.20 mi14:24:083:31:068:233:04
8:54
+0:45
Finish
26.22 mi14:32:203:39:188:228:12
8:03
-0:51

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

7:57 /mi

Average Pace

8:22 /mi

Slowest Pace

9:08 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:27:06

94% of race

Time at Steady Pace

12:12

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:22 /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 mi11:18:3925:378:1525:37
8:15
#15776
10K
6.21 mi11:44:3051:288:1725:51
8:19
#16384
15K
9.32 mi12:10:171:17:158:1725:47
8:18
#16444
20K
12.43 mi12:36:011:42:598:1725:44
8:17
#16165
Half
13.11 mi12:41:381:48:368:175:37
8:14
#16162
25K
15.53 mi13:01:492:08:478:1720:11
8:19
#15967
30K
18.64 mi13:28:482:35:468:2126:59
8:41
#15847
20M
20.00 mi13:40:302:47:288:2211:42
8:37
#15687
21M
21.00 mi13:49:382:56:368:259:08
9:08
#15593
35K
21.75 mi13:55:383:02:368:246:00
8:01
#15472
23M
23.00 mi14:06:093:13:078:2410:31
8:24
#15265
24M
24.00 mi14:14:063:21:048:237:57
7:57
#15071
40K
24.85 mi14:21:043:28:028:226:58
8:09
#14913
25.2M
25.20 mi14:24:083:31:068:233:04
8:54
#14849
Finish
26.22 mi14:32:203:39:188:228:12
8:03
#14755
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi157765136513616527(Top 62%)5606(Top 49%)5606(Top 309%)
10K6.21 mi3.10 mi16384-6085515-3795515-37917069(Top 64%)5910(Top 52%)5910(Top 325%)
15K9.32 mi3.11 mi16444-605553-385553-3816527(Top 62%)5606(Top 49%)5606(Top 309%)
20K12.43 mi3.11 mi16165+2795402+1515402+15115511(Top 58%)5038(Top 44%)5038(Top 277%)
Half13.11 mi0.68 mi16162+35412-105412-1016033(Top 60%)5301(Top 46%)5301(Top 292%)
25K15.53 mi2.42 mi15967+1955314+985314+9815108(Top 57%)4913(Top 43%)4913(Top 270%)
30K18.64 mi3.11 mi15847+1205281+335281+3315434(Top 58%)5184(Top 45%)5184(Top 285%)
20M20.00 mi1.36 mi15687+1605199+825199+8214345(Top 54%)4624(Top 40%)4624(Top 254%)
21M21.00 mi1.00 mi15593+945175+245175+2414147(Top 53%)4567(Top 40%)4567(Top 251%)
35K21.75 mi0.75 mi15472+1215113+625113+6212346(Top 46%)3637(Top 32%)3637(Top 200%)
23M23.00 mi1.25 mi15265+2075004+1095004+10912613(Top 47%)3864(Top 34%)3864(Top 213%)
24M24.00 mi1.00 mi15071+1944896+1084896+10810943(Top 41%)3074(Top 27%)3074(Top 169%)
40K24.85 mi0.85 mi14913+1584827+694827+6911079(Top 42%)3204(Top 28%)3204(Top 176%)
25.2M25.20 mi0.35 mi14849+644800+274800+2712015(Top 45%)3753(Top 33%)3753(Top 207%)
Finish26.22 mi1.02 mi14755+944762+384762+3812480(Top 47%)3957(Top 35%)3957(Top 218%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 62%
×21story building
+97ft-345ft

Overall

16527

Females

5606

F45-49

5606

5K→10K

3.1 - 6.2 mi

Top 64%
×5story building
+79ft-138ft

Overall

17069

Females

5910

F45-49

5910

10K→15K

6.2 - 9.3 mi

Top 62%
×3story building
+67ft-78ft

Overall

16527

Females

5606

F45-49

5606

15K→20K

9.3 - 12.4 mi

Top 58%
×5story building
+106ft-86ft

Overall

15511

Females

5038

F45-49

5038

20K→Half

12.4 - 13.1 mi

Top 60%
×2story building
+19ft-37ft

Overall

16033

Females

5301

F45-49

5301

Half→25K

13.1 - 15.5 mi

Top 57%
×4story building
+66ft-88ft

Overall

15108

Females

4913

F45-49

4913

25K→30K

15.5 - 18.6 mi

Top 58%
×9story building
+181ft-148ft

Overall

15434

Females

5184

F45-49

5184

30K→20M

18.6 - 20.0 mi

Top 54%
×5story building
+64ft-50ft

Overall

14345

Females

4624

F45-49

4624

20M→21M

20.0 - 21.0 mi

Top 53%
×8story building
+106ft-24ft

Overall

14147

Females

4567

F45-49

4567

21M→35K

21.0 - 21.8 mi

Top 46%
×7story building
+17ft-86ft

Overall

12346

Females

3637

F45-49

3637

35K→23M

21.8 - 23.0 mi

Top 47%
×5story building
+23ft-63ft

Overall

12613

Females

3864

F45-49

3864

23M→24M

23.0 - 24.0 mi

Top 41%
×6story building
+12ft-82ft

Overall

10943

Females

3074

F45-49

3074

24M→40K

24.0 - 24.9 mi

Top 42%
×1story
+6ft-20ft

Overall

11079

Females

3204

F45-49

3204

40K→25.2M

24.9 - 25.2 mi

Top 45%
×1story
+13ft-16ft

Overall

12015

Females

3753

F45-49

3753

25.2M→Finish

25.2 - 26.2 mi

Top 47%
×2story building
+22ft-21ft

Overall

12480

Females

3957

F45-49

3957

Passing Analysis

Category:
Athletes Passed
2318
Passed By
1297
Net Change
+1021
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#15776
5K → 10K110718-608#15776#16384
10K → 15K171231-60#16384#16444
15K → 20K32849+279#16444#16165
20K → Half4744+3#16165#16162
Half → 25K23439+195#16162#15967
25K → 30K225105+120#15967#15847
30K → 20M18020+160#15847#15687
20M → 21M13440+94#15687#15593
21M → 35K1254+121#15593#15472
35K → 23M21710+207#15472#15265
23M → 24M1962+194#15265#15071
24M → 40K1624+158#15071#14913
40K → 25.2M706+64#14913#14849
25.2M → Finish11925+94#14849#14755
TOTALS23181297+1021
📊

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