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BOSTON MARATHON 2023

Christina Tai

Bib: 30132•F

MA

0:00
0:00
/ mi
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Division (F18-39)
#0 / 4884
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
33:59
Rank: #25593
Start → 5K
33:59 | 10:56/mi
10K· 6.21 mi
1:09:18
Rank: #25773 (-180)
5K → 10K
35:19 | 11:22/mi
15K· 9.32 mi
1:45:45
Rank: #25844 (-71)
10K → 15K
36:27 | 11:44/mi
20K· 12.43 mi
2:22:06
Rank: #25736 (+108)
15K → 20K
36:21 | 11:42/mi
Half· 13.11 mi
2:30:22
Rank: #25748 (-12)
20K → Half
8:16 | 12:07/mi
25K· 15.53 mi
3:02:19
Rank: #25820 (-72)
Half → 25K
31:57 | 13:11/mi
30K· 18.64 mi
3:42:51
Rank: #25750 (+70)
25K → 30K
40:32 | 13:03/mi
20M
4:00:15
Rank: #25702 (+48)
30K → 20M
17:24 | 12:48/mi
21M
4:15:46
Rank: #25742 (-40)
20M → 21M
15:31 | 15:31/mi
35K· 21.75 mi
4:25:55
Rank: #25758 (-16)
21M → 35K
10:09 | 13:34/mi
23M
4:42:01
Rank: #25731 (+27)
35K → 23M
16:06 | 12:52/mi
24M
4:54:20
Rank: #25704 (+27)
23M → 24M
12:19 | 12:19/mi
40K· 24.85 mi
5:05:12
Rank: #25683 (+21)
24M → 40K
10:52 | 12:43/mi
25.2M
5:10:24
Rank: #25686 (-3)
40K → 25.2M
5:12 | 15:05/mi
Finish· 26.22 mi
5:21:58
Rank: #25670 (+16)
25.2M → Finish
11:34 | 11:21/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:30:22
Pace11:28 /mi
2nd Half
Distance13.11 mi
Time2:51:36
Pace13:05 /mi
📊Positive Split: 14.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:54:5533:5910:5633:59
10:56
-
10K
6.21 mi12:30:141:09:1811:0935:19
11:22
+0:26
15K
9.32 mi13:06:411:45:4511:2136:27
11:44
+0:22
20K
12.43 mi13:43:022:22:0611:2636:21
11:42
-0:02
Half
13.11 mi13:51:182:30:2211:288:16
12:07
+0:25
25K
15.53 mi14:23:153:02:1911:4431:57
13:11
+1:04
30K
18.64 mi15:03:473:42:5111:5740:32
13:03
-0:08
20M
20.00 mi15:21:114:00:1512:0117:24
12:48
-0:15
21M
21.00 mi15:36:424:15:4612:1115:31
15:31
+2:43
35K
21.75 mi15:46:514:25:5512:1410:09
13:34
-1:57
23M
23.00 mi16:02:574:42:0112:1616:06
12:52
-0:42
24M
24.00 mi16:15:164:54:2012:1612:19
12:19
-0:33
40K
24.85 mi16:26:085:05:1212:1710:52
12:43
+0:24
25.2M
25.20 mi16:31:205:10:2412:195:12
15:05
+2:22
Finish
26.22 mi16:42:545:21:5812:1711:34
11:21
-3:44

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

10:56 /mi

Average Pace

12:17 /mi

Slowest Pace

15:31 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:33:40

48% of race

Time at Steady Pace

2:17:26

43% of race

Time at Slower Pace

30:52

10% of race

Average Pace: 12:17 /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 mi11:54:5533:5910:5633:59
10:56
#25593
10K
6.21 mi12:30:141:09:1811:0935:19
11:22
#25773
15K
9.32 mi13:06:411:45:4511:2136:27
11:44
#25844
20K
12.43 mi13:43:022:22:0611:2636:21
11:42
#25736
Half
13.11 mi13:51:182:30:2211:288:16
12:07
#25748
25K
15.53 mi14:23:153:02:1911:4431:57
13:11
#25820
30K
18.64 mi15:03:473:42:5111:5740:32
13:03
#25750
20M
20.00 mi15:21:114:00:1512:0117:24
12:48
#25702
21M
21.00 mi15:36:424:15:4612:1115:31
15:31
#25742
35K
21.75 mi15:46:514:25:5512:1410:09
13:34
#25758
23M
23.00 mi16:02:574:42:0112:1616:06
12:52
#25731
24M
24.00 mi16:15:164:54:2012:1612:19
12:19
#25704
40K
24.85 mi16:26:085:05:1212:1710:52
12:43
#25683
25.2M
25.20 mi16:31:205:10:2412:195:12
15:05
#25686
Finish
26.22 mi16:42:545:21:5812:1711:34
11:21
#25670
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi25593107841078425889(Top 97%)10978(Top 96%)10978(Top 225%)
10K6.21 mi3.10 mi25773-18010906-12210906-12225859(Top 97%)10952(Top 96%)10952(Top 224%)
15K9.32 mi3.11 mi25844-7110940-3410940-3425889(Top 97%)10978(Top 96%)10978(Top 225%)
20K12.43 mi3.11 mi25736+10810894+4610894+4625444(Top 96%)10739(Top 94%)10739(Top 220%)
Half13.11 mi0.68 mi25748-1210902-810902-825955(Top 97%)11035(Top 97%)11035(Top 226%)
25K15.53 mi2.42 mi25820-7210940-3810940-3825963(Top 98%)11061(Top 97%)11061(Top 226%)
30K18.64 mi3.11 mi25750+7010912+2810912+2825458(Top 96%)10819(Top 95%)10819(Top 222%)
20M20.00 mi1.36 mi25702+4810891+2110891+2125003(Top 94%)10604(Top 93%)10604(Top 217%)
21M21.00 mi1.00 mi25742-4010917-2610917-2626027(Top 98%)11127(Top 97%)11127(Top 228%)
35K21.75 mi0.75 mi25758-1610926-910926-925934(Top 97%)11107(Top 97%)11107(Top 227%)
23M23.00 mi1.25 mi25731+2710914+1210914+1224951(Top 94%)10610(Top 93%)10610(Top 217%)
24M24.00 mi1.00 mi25704+2710905+910905+924877(Top 93%)10622(Top 93%)10622(Top 217%)
40K24.85 mi0.85 mi25683+2110896+910896+924694(Top 93%)10520(Top 92%)10520(Top 215%)
25.2M25.20 mi0.35 mi25686-310899-310899-325752(Top 97%)11052(Top 97%)11052(Top 226%)
Finish26.22 mi1.02 mi25670+1610892+710892+724503(Top 92%)10410(Top 91%)10410(Top 213%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 97%
×21stories
+97ft-345ft

Overall

25889

Females

10978

F18-39

10978

5K→10K

3.1 - 6.2 mi

Top 97%
×5stories
+79ft-138ft

Overall

25859

Females

10952

F18-39

10952

10K→15K

6.2 - 9.3 mi

Top 97%
×3stories
+67ft-78ft

Overall

25889

Females

10978

F18-39

10978

15K→20K

9.3 - 12.4 mi

Top 96%
×5stories
+106ft-86ft

Overall

25444

Females

10739

F18-39

10739

20K→Half

12.4 - 13.1 mi

Top 97%
×2stories
+19ft-37ft

Overall

25955

Females

11035

F18-39

11035

Half→25K

13.1 - 15.5 mi

Top 98%
×4stories
+66ft-88ft

Overall

25963

Females

11061

F18-39

11061

25K→30K

15.5 - 18.6 mi

Top 96%
×9stories
+181ft-148ft

Overall

25458

Females

10819

F18-39

10819

30K→20M

18.6 - 20.0 mi

Top 94%
×5stories
+64ft-50ft

Overall

25003

Females

10604

F18-39

10604

20M→21M

20.0 - 21.0 mi

Top 98%
×8stories
+106ft-24ft

Overall

26027

Females

11127

F18-39

11127

21M→35K

21.0 - 21.8 mi

Top 97%
×7stories
+17ft-86ft

Overall

25934

Females

11107

F18-39

11107

35K→23M

21.8 - 23.0 mi

Top 94%
×5stories
+23ft-63ft

Overall

24951

Females

10610

F18-39

10610

23M→24M

23.0 - 24.0 mi

Top 93%
×6stories
+12ft-82ft

Overall

24877

Females

10622

F18-39

10622

24M→40K

24.0 - 24.9 mi

Top 93%
×1story
+6ft-20ft

Overall

24694

Females

10520

F18-39

10520

40K→25.2M

24.9 - 25.2 mi

Top 97%
×1story
+13ft-16ft

Overall

25752

Females

11052

F18-39

11052

25.2M→Finish

25.2 - 26.2 mi

Top 92%
×2stories
+22ft-21ft

Overall

24503

Females

10410

F18-39

10410

Passing Analysis

Category:
Athletes Passed
554
Passed By
631
Net Change
-77
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#25593
5K → 10K71251-180#25593#25773
10K → 15K53124-71#25773#25844
15K → 20K12921+108#25844#25736
20K → Half719-12#25736#25748
Half → 25K2496-72#25748#25820
25K → 30K8818+70#25820#25750
30K → 20M579+48#25750#25702
20M → 21M545-40#25702#25742
21M → 35K824-16#25742#25758
35K → 23M347+27#25758#25731
23M → 24M303+27#25731#25704
24M → 40K221+21#25704#25683
40K → 25.2M47-3#25683#25686
25.2M → Finish226+16#25686#25670
TOTALS554631-77
📊

Passing Visuals

Category:
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🔥Passing Intensity

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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