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BOSTON MARATHON 2023

Minglu Ma

Bib: 15504•F

CA

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

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
8:14/mi
25:35
↑ 97↓ 3451.5%
10K· 6.21 mi
8:28/mi
51:52
↑ 79↓ 1380.4%
15K· 9.32 mi
8:26/mi
1:18:05
↑ 67↓ 78
20K· 12.43 mi
8:34/mi
1:44:42
↑ 106↓ 860.1%
Half· 13.11 mi
8:24/mi
1:50:26
↑ 19↓ 370.5%
25K· 15.53 mi
8:51/mi
2:11:54
↑ 66↓ 880.2%
30K· 18.64 mi
9:20/mi
2:40:53
↑ 181↓ 1480.2%
20M
9:24/mi
2:53:39
↑ 64↓ 500.2%
21M
10:39/mi
3:04:18
↑ 106↓ 241.6%
35K· 21.75 mi
8:57/mi
3:11:00
↑ 17↓ 861.7%
23M
9:08/mi
3:22:26
↑ 23↓ 630.6%
24M
9:11/mi
3:31:37
↓ 821.3%
40K· 24.85 mi
9:16/mi
3:39:32
↓ 200.3%
25.2M
9:57/mi
3:42:58
↑ 13↓ 160.2%
Finish· 26.22 mi
9:17/mi
3:52:26
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:50:26
Pace8:25 /mi
2nd Half
Distance13.11 mi
Time2:02:00
Pace9:18 /mi
📊Positive Split: 10.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:56:2725:358:1425:35
8:14
-
10K
6.21 mi11:22:4451:528:2126:17
8:28
+0:14
15K
9.32 mi11:48:571:18:058:2326:13
8:26
-0:02
20K
12.43 mi12:15:341:44:428:2526:37
8:34
+0:08
Half
13.11 mi12:21:181:50:268:255:44
8:24
-0:10
25K
15.53 mi12:42:462:11:548:2921:28
8:51
+0:27
30K
18.64 mi13:11:452:40:538:3828:59
9:20
+0:29
20M
20.00 mi13:24:312:53:398:4112:46
9:24
+0:04
21M
21.00 mi13:35:103:04:188:4710:39
10:39
+1:15
35K
21.75 mi13:41:523:11:008:476:42
8:57
-1:42
23M
23.00 mi13:53:183:22:268:4811:26
9:08
+0:11
24M
24.00 mi14:02:293:31:378:499:11
9:11
+0:03
40K
24.85 mi14:10:243:39:328:507:55
9:16
+0:05
25.2M
25.20 mi14:13:503:42:588:513:26
9:57
+0:41
Finish
26.22 mi14:23:183:52:268:529:28
9:17
-0:40

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

8:14 /mi

Average Pace

8:52 /mi

Slowest Pace

10:39 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:50:26

48% of race

Time at Steady Pace

1:47:55

46% of race

Time at Slower Pace

14:05

6% of race

Average Pace: 8:52 /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 mi10:56:2725:358:1425:35
8:14
#15701
10K
6.21 mi11:22:4451:528:2126:17
8:28
#16843
15K
9.32 mi11:48:571:18:058:2326:13
8:26
#17060
20K
12.43 mi12:15:341:44:428:2526:37
8:34
#17107
Half
13.11 mi12:21:181:50:268:255:44
8:24
#17114
25K
15.53 mi12:42:462:11:548:2921:28
8:51
#17274
30K
18.64 mi13:11:452:40:538:3828:59
9:20
#17553
20M
20.00 mi13:24:312:53:398:4112:46
9:24
#17622
21M
21.00 mi13:35:103:04:188:4710:39
10:39
#17833
35K
21.75 mi13:41:523:11:008:476:42
8:57
#17843
23M
23.00 mi13:53:183:22:268:4811:26
9:08
#17781
24M
24.00 mi14:02:293:31:378:499:11
9:11
#17824
40K
24.85 mi14:10:243:39:328:507:55
9:16
#17804
25.2M
25.20 mi14:13:503:42:588:513:26
9:57
#17796
Finish
26.22 mi14:23:183:52:268:529:28
9:17
#17865
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi157015098509817401(Top 65%)6160(Top 54%)6160(Top 126%)
10K6.21 mi3.10 mi16843-11425804-7065804-70618009(Top 68%)6481(Top 57%)6481(Top 133%)
15K9.32 mi3.11 mi17060-2175943-1395943-13917401(Top 65%)6160(Top 54%)6160(Top 126%)
20K12.43 mi3.11 mi17107-475993-505993-5017292(Top 65%)6103(Top 53%)6103(Top 125%)
Half13.11 mi0.68 mi17114-75996-35996-317216(Top 65%)6032(Top 53%)6032(Top 124%)
25K15.53 mi2.42 mi17274-1606102-1066102-10618249(Top 69%)6693(Top 59%)6693(Top 137%)
30K18.64 mi3.11 mi17553-2796290-1886290-18818750(Top 70%)7056(Top 62%)7056(Top 144%)
20M20.00 mi1.36 mi17622-696344-546344-5418444(Top 69%)6992(Top 61%)6992(Top 143%)
21M21.00 mi1.00 mi17833-2116489-1456489-14520011(Top 75%)7934(Top 69%)7934(Top 162%)
35K21.75 mi0.75 mi17843-106509-206509-2017751(Top 67%)6699(Top 59%)6699(Top 137%)
23M23.00 mi1.25 mi17781+626488+216488+2116714(Top 63%)6145(Top 54%)6145(Top 126%)
24M24.00 mi1.00 mi17824-436520-326520-3218010(Top 68%)6905(Top 60%)6905(Top 141%)
40K24.85 mi0.85 mi17804+206516+46516+417362(Top 65%)6605(Top 58%)6605(Top 135%)
25.2M25.20 mi0.35 mi17796+86517-16517-117241(Top 65%)6567(Top 57%)6567(Top 134%)
Finish26.22 mi1.02 mi17865-696567-506567-5019322(Top 73%)7622(Top 67%)7622(Top 156%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 65%
×21story building
+97ft-345ft

Overall

17401

Females

6160

F18-39

6160

5K→10K

3.1 - 6.2 mi

Top 68%
×5story building
+79ft-138ft

Overall

18009

Females

6481

F18-39

6481

10K→15K

6.2 - 9.3 mi

Top 65%
×3story building
+67ft-78ft

Overall

17401

Females

6160

F18-39

6160

15K→20K

9.3 - 12.4 mi

Top 65%
×5story building
+106ft-86ft

Overall

17292

Females

6103

F18-39

6103

20K→Half

12.4 - 13.1 mi

Top 65%
×2story building
+19ft-37ft

Overall

17216

Females

6032

F18-39

6032

Half→25K

13.1 - 15.5 mi

Top 69%
×4story building
+66ft-88ft

Overall

18249

Females

6693

F18-39

6693

25K→30K

15.5 - 18.6 mi

Top 70%
×9story building
+181ft-148ft

Overall

18750

Females

7056

F18-39

7056

30K→20M

18.6 - 20.0 mi

Top 69%
×5story building
+64ft-50ft

Overall

18444

Females

6992

F18-39

6992

20M→21M

20.0 - 21.0 mi

Top 75%
×8story building
+106ft-24ft

Overall

20011

Females

7934

F18-39

7934

21M→35K

21.0 - 21.8 mi

Top 67%
×7story building
+17ft-86ft

Overall

17751

Females

6699

F18-39

6699

35K→23M

21.8 - 23.0 mi

Top 63%
×5story building
+23ft-63ft

Overall

16714

Females

6145

F18-39

6145

23M→24M

23.0 - 24.0 mi

Top 68%
×6story building
+12ft-82ft

Overall

18010

Females

6905

F18-39

6905

24M→40K

24.0 - 24.9 mi

Top 65%
×1story
+6ft-20ft

Overall

17362

Females

6605

F18-39

6605

40K→25.2M

24.9 - 25.2 mi

Top 65%
×1story
+13ft-16ft

Overall

17241

Females

6567

F18-39

6567

25.2M→Finish

25.2 - 26.2 mi

Top 73%
×2story building
+22ft-21ft

Overall

19322

Females

7622

F18-39

7622

Passing Analysis

Category:
Athletes Passed
941
Passed By
3105
Net Change
-2164
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#15701
5K → 10K421184-1142#15701#16843
10K → 15K111328-217#16843#17060
15K → 20K164211-47#17060#17107
20K → Half2633-7#17107#17114
Half → 25K82242-160#17114#17274
25K → 30K95374-279#17274#17553
30K → 20M61130-69#17553#17622
20M → 21M31242-211#17622#17833
21M → 35K4656-10#17833#17843
35K → 23M11654+62#17843#17781
23M → 24M4891-43#17781#17824
24M → 40K5939+20#17824#17804
40K → 25.2M3022+8#17804#17796
25.2M → Finish3099-69#17796#17865
TOTALS9413105-2164
📊

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