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BOSTON MARATHON 2024

Renny Shih

Bib: 21530•F

NJ

0:00
0:00
/ mi
Masters
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Overall
#0 / 25550
Gender (Female)
#0 / 10924
Masters (Masters Women)
#0 / 6263
Division (F50-54)
#0 / 1187
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
9:20/mi
28:59
↑ 97↓ 3451.5%
10K· 6.21 mi
9:28/mi
58:23
↑ 79↓ 1380.4%
15K· 9.32 mi
9:38/mi
1:28:20
↑ 67↓ 78
20K· 12.43 mi
9:58/mi
1:59:19
↑ 106↓ 860.1%
Half· 13.11 mi
9:24/mi
2:05:44
↑ 19↓ 370.5%
25K· 15.53 mi
10:09/mi
2:30:21
↑ 66↓ 880.2%
30K· 18.64 mi
10:32/mi
3:03:06
↑ 181↓ 1480.2%
20M
10:25/mi
3:17:16
↑ 64↓ 500.2%
21M
11:07/mi
3:28:23
↑ 106↓ 241.6%
35K· 21.75 mi
10:11/mi
3:36:00
↑ 17↓ 861.7%
23M
10:17/mi
3:48:53
↑ 23↓ 630.6%
24M
10:25/mi
3:59:18
↓ 821.3%
40K· 24.85 mi
10:21/mi
4:08:09
↓ 200.3%
25.2M
10:50/mi
4:11:53
↑ 13↓ 160.2%
Finish· 26.22 mi
8:43/mi
4:20:46
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:05:44
Pace9:35 /mi
2nd Half
Distance13.11 mi
Time2:15:02
Pace10:18 /mi
📊Positive Split: 7.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:26:1728:599:2028:59
9:20
-
10K
6.21 mi11:55:4158:239:2429:24
9:28
+0:08
15K
9.32 mi12:25:381:28:209:2929:57
9:38
+0:10
20K
12.43 mi12:56:371:59:199:3630:59
9:58
+0:20
Half
13.11 mi13:03:022:05:449:356:25
9:24
-0:34
25K
15.53 mi13:27:392:30:219:4124:37
10:09
+0:45
30K
18.64 mi14:00:243:03:069:4932:45
10:32
+0:23
20M
20.00 mi14:14:343:17:169:5214:10
10:25
-0:07
21M
21.00 mi14:25:413:28:239:5511:07
11:07
+0:42
35K
21.75 mi14:33:183:36:009:567:37
10:11
-0:56
23M
23.00 mi14:46:113:48:539:5712:53
10:17
+0:06
24M
24.00 mi14:56:363:59:189:5810:25
10:25
+0:08
40K
24.85 mi15:05:274:08:099:598:51
10:21
-0:04
25.2M
25.20 mi15:09:114:11:5310:003:44
10:50
+0:29
Finish
26.22 mi15:18:044:20:469:578:53
8:43
-2:07

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

8:43 /mi

Average Pace

9:57 /mi

Slowest Pace

11:07 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:43:38

40% of race

Time at Steady Pace

1:49:32

42% of race

Time at Slower Pace

47:36

18% of race

Average Pace: 9:57 /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 mi11:26:1728:599:2028:59
9:20
#21216
10K
6.21 mi11:55:4158:239:2429:24
9:28
#21254
15K
9.32 mi12:25:381:28:209:2929:57
9:38
#21170
20K
12.43 mi12:56:371:59:199:3630:59
9:58
#20946
Half
13.11 mi13:03:022:05:449:356:25
9:24
#20879
25K
15.53 mi13:27:392:30:219:4124:37
10:09
#20638
30K
18.64 mi14:00:243:03:069:4932:45
10:32
#20299
20M
20.00 mi14:14:343:17:169:5214:10
10:25
#20097
21M
21.00 mi14:25:413:28:239:5511:07
11:07
#19894
35K
21.75 mi14:33:183:36:009:567:37
10:11
#19791
23M
23.00 mi14:46:113:48:539:5712:53
10:17
#19579
24M
24.00 mi14:56:363:59:189:5810:25
10:25
#19481
40K
24.85 mi15:05:274:08:099:598:51
10:21
#19345
25.2M
25.20 mi15:09:114:11:5310:003:44
10:50
#19255
Finish
26.22 mi15:18:044:20:469:578:53
8:43
#19065
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi212168520852021063(Top 82%)8350(Top 76%)8350(Top 703%)
10K6.21 mi3.10 mi21254-388516+48516+421254(Top 83%)8508(Top 78%)8508(Top 717%)
15K9.32 mi3.11 mi21170+848458+588458+5821063(Top 82%)8350(Top 76%)8350(Top 703%)
20K12.43 mi3.11 mi20946+2248326+1328326+13220523(Top 80%)8103(Top 74%)8103(Top 683%)
Half13.11 mi0.68 mi20879+678291+358291+3519775(Top 77%)7757(Top 71%)7757(Top 653%)
25K15.53 mi2.42 mi20638+2418187+1048187+10419521(Top 76%)7656(Top 70%)7656(Top 645%)
30K18.64 mi3.11 mi20299+3398051+1368051+13618896(Top 74%)7522(Top 69%)7522(Top 634%)
20M20.00 mi1.36 mi20097+2027973+787973+7817789(Top 70%)7104(Top 65%)7104(Top 598%)
21M21.00 mi1.00 mi19894+2037888+857888+8516656(Top 65%)6679(Top 61%)6679(Top 563%)
35K21.75 mi0.75 mi19791+1037853+357853+3517711(Top 69%)7190(Top 66%)7190(Top 606%)
23M23.00 mi1.25 mi19579+2127775+787775+7816414(Top 64%)6609(Top 60%)6609(Top 557%)
24M24.00 mi1.00 mi19481+987745+307745+3017626(Top 69%)7280(Top 67%)7280(Top 613%)
40K24.85 mi0.85 mi19345+1367683+627683+6216239(Top 64%)6622(Top 61%)6622(Top 558%)
25.2M25.20 mi0.35 mi19255+907641+427641+4213984(Top 55%)5580(Top 51%)5580(Top 470%)
Finish26.22 mi1.02 mi19065+1907560+817560+8112778(Top 50%)4866(Top 45%)4866(Top 410%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 82%
×21story building
+97ft-345ft

Overall

21063

Females

8350

F50-54

8350

5K→10K

3.1 - 6.2 mi

Top 83%
×5story building
+79ft-138ft

Overall

21254

Females

8508

F50-54

8508

10K→15K

6.2 - 9.3 mi

Top 82%
×3story building
+67ft-78ft

Overall

21063

Females

8350

F50-54

8350

15K→20K

9.3 - 12.4 mi

Top 80%
×5story building
+106ft-86ft

Overall

20523

Females

8103

F50-54

8103

20K→Half

12.4 - 13.1 mi

Top 77%
×2story building
+19ft-37ft

Overall

19775

Females

7757

F50-54

7757

Half→25K

13.1 - 15.5 mi

Top 76%
×4story building
+66ft-88ft

Overall

19521

Females

7656

F50-54

7656

25K→30K

15.5 - 18.6 mi

Top 74%
×9story building
+181ft-148ft

Overall

18896

Females

7522

F50-54

7522

30K→20M

18.6 - 20.0 mi

Top 70%
×5story building
+64ft-50ft

Overall

17789

Females

7104

F50-54

7104

20M→21M

20.0 - 21.0 mi

Top 65%
×8story building
+106ft-24ft

Overall

16656

Females

6679

F50-54

6679

21M→35K

21.0 - 21.8 mi

Top 69%
×7story building
+17ft-86ft

Overall

17711

Females

7190

F50-54

7190

35K→23M

21.8 - 23.0 mi

Top 64%
×5story building
+23ft-63ft

Overall

16414

Females

6609

F50-54

6609

23M→24M

23.0 - 24.0 mi

Top 69%
×6story building
+12ft-82ft

Overall

17626

Females

7280

F50-54

7280

24M→40K

24.0 - 24.9 mi

Top 64%
×1story
+6ft-20ft

Overall

16239

Females

6622

F50-54

6622

40K→25.2M

24.9 - 25.2 mi

Top 55%
×1story
+13ft-16ft

Overall

13984

Females

5580

F50-54

5580

25.2M→Finish

25.2 - 26.2 mi

Top 50%
×2story building
+22ft-21ft

Overall

12778

Females

4866

F50-54

4866

Passing Analysis

Category:
Athletes Passed
2782
Passed By
631
Net Change
+2151
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#21216
5K → 10K223261-38#21216#21254
10K → 15K221137+84#21254#21170
15K → 20K30884+224#21170#20946
20K → Half747+67#20946#20879
Half → 25K28039+241#20879#20638
25K → 30K37738+339#20638#20299
30K → 20M21311+202#20299#20097
20M → 21M21310+203#20097#19894
21M → 35K11512+103#19894#19791
35K → 23M2186+212#19791#19579
23M → 24M11719+98#19579#19481
24M → 40K1426+136#19481#19345
40K → 25.2M900+90#19345#19255
25.2M → Finish1911+190#19255#19065
TOTALS2782631+2151
📊

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