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BOSTON MARATHON 2024

Thanh Ma

Bib: 21575•F

CA

0:00
0:00
/ mi
Masters
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Overall
#0 / 25550
Gender (Female)
#0 / 10924
Masters (Masters Women)
#0 / 6263
Division (F45-49)
#0 / 1753
Race Day Weather
55°/45°F
scattered clouds

⏱️ 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
8:11/mi
25:24
↑ 97↓ 3451.5%
10K· 6.21 mi
8:08/mi
50:39
↑ 79↓ 1380.4%
15K· 9.32 mi
8:11/mi
1:16:04
↑ 67↓ 78
20K· 12.43 mi
8:18/mi
1:41:50
↑ 106↓ 860.1%
Half· 13.11 mi
8:10/mi
1:47:24
↑ 19↓ 370.5%
25K· 15.53 mi
8:29/mi
2:07:59
↑ 66↓ 880.2%
30K· 18.64 mi
9:07/mi
2:36:18
↑ 181↓ 1480.2%
20M
9:43/mi
2:49:30
↑ 64↓ 500.2%
21M
10:50/mi
3:00:20
↑ 106↓ 241.6%
35K· 21.75 mi
9:16/mi
3:07:16
↑ 17↓ 861.7%
23M
22:47/mi
3:35:48
↑ 23↓ 630.6%
24M
9:20/mi
3:45:08
↓ 821.3%
40K· 24.85 mi
8:42/mi
3:52:34
↓ 200.3%
25.2M
9:52/mi
3:55:58
↑ 13↓ 160.2%
Finish· 26.22 mi
8:42/mi
4:04:50
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:47:24
Pace8:12 /mi
2nd Half
Distance13.11 mi
Time2:17:26
Pace10:29 /mi
📊Positive Split: 28.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:23:1425:248:1125:24
8:11
-
10K
6.21 mi11:48:2950:398:0925:15
8:08
-0:03
15K
9.32 mi12:13:541:16:048:1025:25
8:11
+0:03
20K
12.43 mi12:39:401:41:508:1225:46
8:18
+0:07
Half
13.11 mi12:45:141:47:248:125:34
8:10
-0:08
25K
15.53 mi13:05:492:07:598:1420:35
8:29
+0:19
30K
18.64 mi13:34:082:36:188:2328:19
9:07
+0:38
20M
20.00 mi13:47:202:49:308:2813:12
9:43
+0:36
21M
21.00 mi13:58:103:00:208:3510:50
10:50
+1:07
35K
21.75 mi14:05:063:07:168:376:56
9:16
-1:34
23M
23.00 mi14:33:383:35:489:2328:32
22:47
+13:31
24M
24.00 mi14:42:583:45:089:239:20
9:20
-13:27
40K
24.85 mi14:50:243:52:349:217:26
8:42
-0:38
25.2M
25.20 mi14:53:483:55:589:223:24
9:52
+1:10
Finish
26.22 mi15:02:404:04:509:218:52
8:42
-1:10

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

8:08 /mi

Average Pace

9:21 /mi

Slowest Pace

22:47 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

0:00

0% of race

Time at Steady Pace

3:25:28

84% of race

Time at Slower Pace

39:22

16% of race

Average Pace: 9:20 /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 mi11:23:1425:248:1125:24
8:11
#15889
10K
6.21 mi11:48:2950:398:0925:15
8:08
#15462
15K
9.32 mi12:13:541:16:048:1025:25
8:11
#15112
20K
12.43 mi12:39:401:41:508:1225:46
8:18
#14693
Half
13.11 mi12:45:141:47:248:125:34
8:10
#14643
25K
15.53 mi13:05:492:07:598:1420:35
8:29
#14287
30K
18.64 mi13:34:082:36:188:2328:19
9:07
#14119
20M
20.00 mi13:47:202:49:308:2813:12
9:43
#14234
21M
21.00 mi13:58:103:00:208:3510:50
10:50
#14381
35K
21.75 mi14:05:063:07:168:376:56
9:16
#14370
23M
23.00 mi14:33:383:35:489:2328:32
22:47
#17723
24M
24.00 mi14:42:583:45:089:239:20
9:20
#17571
40K
24.85 mi14:50:243:52:349:217:26
8:42
#17286
25.2M
25.20 mi14:53:483:55:589:223:24
9:52
#17165
Finish
26.22 mi15:02:404:04:509:218:52
8:42
#16979
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi158895501550114626(Top 57%)4744(Top 43%)4744(Top 271%)
10K6.21 mi3.10 mi15462+4275225+2765225+27615077(Top 59%)4983(Top 46%)4983(Top 284%)
15K9.32 mi3.11 mi15112+3505017+2085017+20814626(Top 57%)4744(Top 43%)4744(Top 271%)
20K12.43 mi3.11 mi14693+4194774+2434774+24313677(Top 54%)4236(Top 39%)4236(Top 242%)
Half13.11 mi0.68 mi14643+504755+194755+1913865(Top 54%)4412(Top 40%)4412(Top 252%)
25K15.53 mi2.42 mi14287+3564570+1854570+18513008(Top 51%)4054(Top 37%)4054(Top 231%)
30K18.64 mi3.11 mi14119+1684547+234547+2313810(Top 54%)4743(Top 43%)4743(Top 271%)
20M20.00 mi1.36 mi14234-1154674-1274674-12715420(Top 60%)5916(Top 54%)5916(Top 337%)
21M21.00 mi1.00 mi14381-1474813-1394813-13915892(Top 62%)6275(Top 57%)6275(Top 358%)
35K21.75 mi0.75 mi14370+114830-174830-1714604(Top 57%)5649(Top 52%)5649(Top 322%)
23M23.00 mi1.25 mi17723-33536776-19466776-194625515(Top 100%)10911(Top 100%)10911(Top 622%)
24M24.00 mi1.00 mi17571+1526716+606716+6013716(Top 54%)5300(Top 49%)5300(Top 302%)
40K24.85 mi0.85 mi17286+2856582+1346582+1349412(Top 37%)3297(Top 30%)3297(Top 188%)
25.2M25.20 mi0.35 mi17165+1216533+496533+4910445(Top 41%)3862(Top 35%)3862(Top 220%)
Finish26.22 mi1.02 mi16979+1866464+696464+6912665(Top 50%)4801(Top 44%)4801(Top 274%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 57%
×21story building
+97ft-345ft

Overall

14626

Females

4744

F45-49

4744

5K→10K

3.1 - 6.2 mi

Top 59%
×5story building
+79ft-138ft

Overall

15077

Females

4983

F45-49

4983

10K→15K

6.2 - 9.3 mi

Top 57%
×3story building
+67ft-78ft

Overall

14626

Females

4744

F45-49

4744

15K→20K

9.3 - 12.4 mi

Top 54%
×5story building
+106ft-86ft

Overall

13677

Females

4236

F45-49

4236

20K→Half

12.4 - 13.1 mi

Top 54%
×2story building
+19ft-37ft

Overall

13865

Females

4412

F45-49

4412

Half→25K

13.1 - 15.5 mi

Top 51%
×4story building
+66ft-88ft

Overall

13008

Females

4054

F45-49

4054

25K→30K

15.5 - 18.6 mi

Top 54%
×9story building
+181ft-148ft

Overall

13810

Females

4743

F45-49

4743

30K→20M

18.6 - 20.0 mi

Top 60%
×5story building
+64ft-50ft

Overall

15420

Females

5916

F45-49

5916

20M→21M

20.0 - 21.0 mi

Top 62%
×8story building
+106ft-24ft

Overall

15892

Females

6275

F45-49

6275

21M→35K

21.0 - 21.8 mi

Top 57%
×7story building
+17ft-86ft

Overall

14604

Females

5649

F45-49

5649

35K→23M

21.8 - 23.0 mi

Top 100%
×5story building
+23ft-63ft

Overall

25515

Females

10911

F45-49

10911

23M→24M

23.0 - 24.0 mi

Top 54%
×6story building
+12ft-82ft

Overall

13716

Females

5300

F45-49

5300

24M→40K

24.0 - 24.9 mi

Top 37%
×1story
+6ft-20ft

Overall

9412

Females

3297

F45-49

3297

40K→25.2M

24.9 - 25.2 mi

Top 41%
×1story
+13ft-16ft

Overall

10445

Females

3862

F45-49

3862

25.2M→Finish

25.2 - 26.2 mi

Top 50%
×2story building
+22ft-21ft

Overall

12665

Females

4801

F45-49

4801

Passing Analysis

Category:
Athletes Passed
3300
Passed By
4390
Net Change
-1090
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#15889
5K → 10K550123+427#15889#15462
10K → 15K42575+350#15462#15112
15K → 20K46344+419#15112#14693
20K → Half6515+50#14693#14643
Half → 25K40448+356#14643#14287
25K → 30K356188+168#14287#14119
30K → 20M94209-115#14119#14234
20M → 21M87234-147#14234#14381
21M → 35K9483+11#14381#14370
35K → 23M33356-3353#14370#17723
23M → 24M1597+152#17723#17571
24M → 40K2861+285#17571#17286
40K → 25.2M1210+121#17286#17165
25.2M → Finish1937+186#17165#16979
TOTALS33004390-1090
📊

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