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BOSTON MARATHON 2023

Jie Chen

Bib: 29178•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

Start
0:00:00
Race begins
5K· 3.11 mi
28:02
Rank: #20568
Start → 5K
28:02 | 9:01/mi
10K· 6.21 mi
58:18
Rank: #22004 (-1436)
5K → 10K
30:16 | 9:45/mi
15K· 9.32 mi
1:28:47
Rank: #22392 (-388)
10K → 15K
30:29 | 9:49/mi
20K· 12.43 mi
2:01:50
Rank: #22952 (-560)
15K → 20K
33:03 | 10:38/mi
Half· 13.11 mi
2:09:03
Rank: #23045 (-93)
20K → Half
7:13 | 10:35/mi
25K· 15.53 mi
2:34:24
Rank: #23046 (-1)
Half → 25K
25:21 | 10:27/mi
30K· 18.64 mi
3:07:30
Rank: #22933 (+113)
25K → 30K
33:06 | 10:39/mi
20M
3:22:38
Rank: #22934 (-1)
30K → 20M
15:08 | 11:08/mi
21M
3:35:08
Rank: #22978 (-44)
20M → 21M
12:30 | 12:30/mi
35K· 21.75 mi
3:43:16
Rank: #22980 (-2)
21M → 35K
8:08 | 10:52/mi
23M
3:56:58
Rank: #22922 (+58)
35K → 23M
13:42 | 10:57/mi
24M
4:08:00
Rank: #22924 (-2)
23M → 24M
11:02 | 11:02/mi
40K· 24.85 mi
4:17:18
Rank: #22887 (+37)
24M → 40K
9:18 | 10:53/mi
25.2M
4:21:14
Rank: #22872 (+15)
40K → 25.2M
3:56 | 11:24/mi
Finish· 26.22 mi
4:31:44
Rank: #22866 (+6)
25.2M → Finish
10:30 | 10:18/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:09:03
Pace9:51 /mi
2nd Half
Distance13.11 mi
Time2:22:41
Pace10:53 /mi
📊Positive Split: 10.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:43:0428:029:0128:02
9:01
-
10K
6.21 mi12:13:2058:189:2330:16
9:45
+0:44
15K
9.32 mi12:43:491:28:479:3230:29
9:49
+0:04
20K
12.43 mi13:16:522:01:509:4833:03
10:38
+0:49
Half
13.11 mi13:24:052:09:039:517:13
10:35
-0:03
25K
15.53 mi13:49:262:34:249:5625:21
10:27
-0:08
30K
18.64 mi14:22:323:07:3010:0433:06
10:39
+0:12
20M
20.00 mi14:37:403:22:3810:0815:08
11:08
+0:29
21M
21.00 mi14:50:103:35:0810:1512:30
12:30
+1:22
35K
21.75 mi14:58:183:43:1610:168:08
10:52
-1:38
23M
23.00 mi15:12:003:56:5810:1813:42
10:57
+0:05
24M
24.00 mi15:23:024:08:0010:2011:02
11:02
+0:05
40K
24.85 mi15:32:204:17:1810:219:18
10:53
-0:09
25.2M
25.20 mi15:36:164:21:1410:223:56
11:24
+0:31
Finish
26.22 mi15:46:464:31:4410:2210:30
10:18
-1:06

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

9:01 /mi

Average Pace

10:22 /mi

Slowest Pace

12:30 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:28:47

33% of race

Time at Steady Pace

2:31:23

56% of race

Time at Slower Pace

31:34

12% of race

Average Pace: 10:22 /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 mi11:43:0428:029:0128:02
9:01
#20568
10K
6.21 mi12:13:2058:189:2330:16
9:45
#22004
15K
9.32 mi12:43:491:28:479:3230:29
9:49
#22392
20K
12.43 mi13:16:522:01:509:4833:03
10:38
#22952
Half
13.11 mi13:24:052:09:039:517:13
10:35
#23045
25K
15.53 mi13:49:262:34:249:5625:21
10:27
#23046
30K
18.64 mi14:22:323:07:3010:0433:06
10:39
#22933
20M
20.00 mi14:37:403:22:3810:0815:08
11:08
#22934
21M
21.00 mi14:50:103:35:0810:1512:30
12:30
#22978
35K
21.75 mi14:58:183:43:1610:168:08
10:52
#22980
23M
23.00 mi15:12:003:56:5810:1813:42
10:57
#22922
24M
24.00 mi15:23:024:08:0010:2011:02
11:02
#22924
40K
24.85 mi15:32:204:17:1810:219:18
10:53
#22887
25.2M
25.20 mi15:36:164:21:1410:223:56
11:24
#22872
Finish
26.22 mi15:46:464:31:4410:2210:30
10:18
#22866
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi205688156815623079(Top 87%)9387(Top 82%)9387(Top 517%)
10K6.21 mi3.10 mi22004-14368856-7008856-70023142(Top 87%)9410(Top 82%)9410(Top 518%)
15K9.32 mi3.11 mi22392-3889039-1839039-18323079(Top 87%)9387(Top 82%)9387(Top 517%)
20K12.43 mi3.11 mi22952-5609320-2819320-28124077(Top 90%)9952(Top 87%)9952(Top 548%)
Half13.11 mi0.68 mi23045-939372-529372-5224341(Top 91%)10118(Top 89%)10118(Top 557%)
25K15.53 mi2.42 mi23046-19380-89380-823113(Top 87%)9452(Top 83%)9452(Top 520%)
30K18.64 mi3.11 mi22933+1139350+309350+3022515(Top 85%)9193(Top 80%)9193(Top 506%)
20M20.00 mi1.36 mi22934-19364-149364-1422932(Top 86%)9471(Top 83%)9471(Top 521%)
21M21.00 mi1.00 mi22978-449394-309394-3023458(Top 88%)9787(Top 86%)9787(Top 539%)
35K21.75 mi0.75 mi22980-29402-89402-823077(Top 87%)9631(Top 84%)9631(Top 530%)
23M23.00 mi1.25 mi22922+589384+189384+1822239(Top 84%)9188(Top 80%)9188(Top 506%)
24M24.00 mi1.00 mi22924-29395-119395-1123117(Top 87%)9692(Top 85%)9692(Top 533%)
40K24.85 mi0.85 mi22887+379385+109385+1022113(Top 83%)9201(Top 81%)9201(Top 506%)
25.2M25.20 mi0.35 mi22872+159377+89377+821396(Top 80%)8815(Top 77%)8815(Top 485%)
Finish26.22 mi1.02 mi22866+69383-69383-622574(Top 85%)9430(Top 83%)9430(Top 519%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 87%
×21stories
+97ft-345ft

Overall

23079

Females

9387

F45-49

9387

5K→10K

3.1 - 6.2 mi

Top 87%
×5stories
+79ft-138ft

Overall

23142

Females

9410

F45-49

9410

10K→15K

6.2 - 9.3 mi

Top 87%
×3stories
+67ft-78ft

Overall

23079

Females

9387

F45-49

9387

15K→20K

9.3 - 12.4 mi

Top 90%
×5stories
+106ft-86ft

Overall

24077

Females

9952

F45-49

9952

20K→Half

12.4 - 13.1 mi

Top 91%
×2stories
+19ft-37ft

Overall

24341

Females

10118

F45-49

10118

Half→25K

13.1 - 15.5 mi

Top 87%
×4stories
+66ft-88ft

Overall

23113

Females

9452

F45-49

9452

25K→30K

15.5 - 18.6 mi

Top 85%
×9stories
+181ft-148ft

Overall

22515

Females

9193

F45-49

9193

30K→20M

18.6 - 20.0 mi

Top 86%
×5stories
+64ft-50ft

Overall

22932

Females

9471

F45-49

9471

20M→21M

20.0 - 21.0 mi

Top 88%
×8stories
+106ft-24ft

Overall

23458

Females

9787

F45-49

9787

21M→35K

21.0 - 21.8 mi

Top 87%
×7stories
+17ft-86ft

Overall

23077

Females

9631

F45-49

9631

35K→23M

21.8 - 23.0 mi

Top 84%
×5stories
+23ft-63ft

Overall

22239

Females

9188

F45-49

9188

23M→24M

23.0 - 24.0 mi

Top 87%
×6stories
+12ft-82ft

Overall

23117

Females

9692

F45-49

9692

24M→40K

24.0 - 24.9 mi

Top 83%
×1story
+6ft-20ft

Overall

22113

Females

9201

F45-49

9201

40K→25.2M

24.9 - 25.2 mi

Top 80%
×1story
+13ft-16ft

Overall

21396

Females

8815

F45-49

8815

25.2M→Finish

25.2 - 26.2 mi

Top 85%
×2stories
+22ft-21ft

Overall

22574

Females

9430

F45-49

9430

Passing Analysis

Category:
Athletes Passed
731
Passed By
3029
Net Change
-2298
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#20568
5K → 10K171453-1436#20568#22004
10K → 15K62450-388#22004#22392
15K → 20K29589-560#22392#22952
20K → Half7100-93#22952#23045
Half → 25K8990-1#23045#23046
25K → 30K17562+113#23046#22933
30K → 20M6364-1#22933#22934
20M → 21M3680-44#22934#22978
21M → 35K2931-2#22978#22980
35K → 23M7820+58#22980#22922
23M → 24M4244-2#22922#22924
24M → 40K5417+37#22924#22887
40K → 25.2M194+15#22887#22872
25.2M → Finish3125+6#22872#22866
TOTALS7313029-2298
📊

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