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BOSTON MARATHON 2024

Pei Lin

Bib: 21923•F

MA

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
9:03/mi
28:07
↑ 97↓ 3451.5%
10K· 6.21 mi
9:15/mi
56:50
↑ 79↓ 1380.4%
15K· 9.32 mi
9:31/mi
1:26:24
↑ 67↓ 78
20K· 12.43 mi
10:37/mi
1:59:23
↑ 106↓ 860.1%
Half· 13.11 mi
9:13/mi
2:05:40
↑ 19↓ 370.5%
25K· 15.53 mi
9:35/mi
2:28:55
↑ 66↓ 880.2%
30K· 18.64 mi
9:45/mi
2:59:12
↑ 181↓ 1480.2%
20M
9:25/mi
3:12:00
↑ 64↓ 500.2%
21M
11:04/mi
3:23:04
↑ 106↓ 241.6%
35K· 21.75 mi
8:44/mi
3:29:36
↑ 17↓ 861.7%
23M
9:15/mi
3:41:11
↑ 23↓ 630.6%
24M
8:39/mi
3:49:50
↓ 821.3%
40K· 24.85 mi
8:46/mi
3:57:20
↓ 200.3%
25.2M
11:01/mi
4:01:08
↑ 13↓ 160.2%
Finish· 26.22 mi
8:50/mi
4:10:08
↑ 22↓ 21

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time2:05:40
Pace9:35 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time2:04:28
Pace9:30 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:26:2028:079:0328:07
9:03
-
10K
6.21 mi11:55:0356:509:0928:43
9:15
+0:12
15K
9.32 mi12:24:371:26:249:1629:34
9:31
+0:16
20K
12.43 mi12:57:361:59:239:3632:59
10:37
+1:06
Half
13.11 mi13:03:532:05:409:356:17
9:13
-1:24
25K
15.53 mi13:27:082:28:559:3523:15
9:35
+0:22
30K
18.64 mi13:57:252:59:129:3730:17
9:45
+0:10
20M
20.00 mi14:10:133:12:009:3612:48
9:25
-0:20
21M
21.00 mi14:21:173:23:049:4011:04
11:04
+1:39
35K
21.75 mi14:27:493:29:369:386:32
8:44
-2:20
23M
23.00 mi14:39:243:41:119:3711:35
9:15
+0:31
24M
24.00 mi14:48:033:49:509:358:39
8:39
-0:36
40K
24.85 mi14:55:333:57:209:337:30
8:46
+0:07
25.2M
25.20 mi14:59:214:01:089:343:48
11:01
+2:15
Finish
26.22 mi15:08:214:10:089:339:00
8:50
-2:11

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

8:39 /mi

Average Pace

9:33 /mi

Slowest Pace

11:04 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

31:41

13% of race

Time at Steady Pace

2:20:19

56% of race

Time at Slower Pace

1:18:08

31% of race

Average Pace: 9:32 /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 mi11:26:2028:079:0328:07
9:03
#20272
10K
6.21 mi11:55:0356:509:0928:43
9:15
#20452
15K
9.32 mi12:24:371:26:249:1629:34
9:31
#20538
20K
12.43 mi12:57:361:59:239:3632:59
10:37
#20963
Half
13.11 mi13:03:532:05:409:356:17
9:13
#20867
25K
15.53 mi13:27:082:28:559:3523:15
9:35
#20379
30K
18.64 mi13:57:252:59:129:3730:17
9:45
#19720
20M
20.00 mi14:10:133:12:009:3612:48
9:25
#19349
21M
21.00 mi14:21:173:23:049:4011:04
11:04
#19151
35K
21.75 mi14:27:493:29:369:386:32
8:44
#18928
23M
23.00 mi14:39:243:41:119:3711:35
9:15
#18543
24M
24.00 mi14:48:033:49:509:358:39
8:39
#18247
40K
24.85 mi14:55:333:57:209:337:30
8:46
#17964
25.2M
25.20 mi14:59:214:01:089:343:48
11:01
#17892
Finish
26.22 mi15:08:214:10:089:339:00
8:50
#17726
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi202728024802420712(Top 81%)8161(Top 75%)8161(Top 688%)
10K6.21 mi3.10 mi20452-1808092-688092-6820615(Top 81%)8161(Top 75%)8161(Top 688%)
15K9.32 mi3.11 mi20538-868105-138105-1320712(Top 81%)8161(Top 75%)8161(Top 688%)
20K12.43 mi3.11 mi20963-4258332-2278332-22721909(Top 86%)8859(Top 81%)8859(Top 746%)
Half13.11 mi0.68 mi20867+968285+478285+4719130(Top 75%)7408(Top 68%)7408(Top 624%)
25K15.53 mi2.42 mi20379+4888042+2438042+24317842(Top 70%)6734(Top 62%)6734(Top 567%)
30K18.64 mi3.11 mi19720+6597747+2957747+29516443(Top 64%)6217(Top 57%)6217(Top 524%)
20M20.00 mi1.36 mi19349+3717600+1477600+14714185(Top 56%)5231(Top 48%)5231(Top 441%)
21M21.00 mi1.00 mi19151+1987506+947506+9416523(Top 65%)6613(Top 61%)6613(Top 557%)
35K21.75 mi0.75 mi18928+2237404+1027404+10212054(Top 47%)4331(Top 40%)4331(Top 365%)
23M23.00 mi1.25 mi18543+3857220+1847220+18412420(Top 49%)4632(Top 42%)4632(Top 390%)
24M24.00 mi1.00 mi18247+2967088+1327088+13210338(Top 40%)3624(Top 33%)3624(Top 305%)
40K24.85 mi0.85 mi17964+2836965+1236965+1239793(Top 38%)3487(Top 32%)3487(Top 294%)
25.2M25.20 mi0.35 mi17892+726938+276938+2714628(Top 57%)5873(Top 54%)5873(Top 495%)
Finish26.22 mi1.02 mi17726+1666868+706868+7013380(Top 52%)5171(Top 47%)5171(Top 436%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 81%
×21story building
+97ft-345ft

Overall

20712

Females

8161

F50-54

8161

5K→10K

3.1 - 6.2 mi

Top 81%
×5story building
+79ft-138ft

Overall

20615

Females

8161

F50-54

8161

10K→15K

6.2 - 9.3 mi

Top 81%
×3story building
+67ft-78ft

Overall

20712

Females

8161

F50-54

8161

15K→20K

9.3 - 12.4 mi

Top 86%
×5story building
+106ft-86ft

Overall

21909

Females

8859

F50-54

8859

20K→Half

12.4 - 13.1 mi

Top 75%
×2story building
+19ft-37ft

Overall

19130

Females

7408

F50-54

7408

Half→25K

13.1 - 15.5 mi

Top 70%
×4story building
+66ft-88ft

Overall

17842

Females

6734

F50-54

6734

25K→30K

15.5 - 18.6 mi

Top 64%
×9story building
+181ft-148ft

Overall

16443

Females

6217

F50-54

6217

30K→20M

18.6 - 20.0 mi

Top 56%
×5story building
+64ft-50ft

Overall

14185

Females

5231

F50-54

5231

20M→21M

20.0 - 21.0 mi

Top 65%
×8story building
+106ft-24ft

Overall

16523

Females

6613

F50-54

6613

21M→35K

21.0 - 21.8 mi

Top 47%
×7story building
+17ft-86ft

Overall

12054

Females

4331

F50-54

4331

35K→23M

21.8 - 23.0 mi

Top 49%
×5story building
+23ft-63ft

Overall

12420

Females

4632

F50-54

4632

23M→24M

23.0 - 24.0 mi

Top 40%
×6story building
+12ft-82ft

Overall

10338

Females

3624

F50-54

3624

24M→40K

24.0 - 24.9 mi

Top 38%
×1story
+6ft-20ft

Overall

9793

Females

3487

F50-54

3487

40K→25.2M

24.9 - 25.2 mi

Top 57%
×1story
+13ft-16ft

Overall

14628

Females

5873

F50-54

5873

25.2M→Finish

25.2 - 26.2 mi

Top 52%
×2story building
+22ft-21ft

Overall

13380

Females

5171

F50-54

5171

Passing Analysis

Category:
Athletes Passed
3717
Passed By
1171
Net Change
+2546
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#20272
5K → 10K201381-180#20272#20452
10K → 15K183269-86#20452#20538
15K → 20K67492-425#20538#20963
20K → Half971+96#20963#20867
Half → 25K4913+488#20867#20379
25K → 30K6612+659#20379#19720
30K → 20M3710+371#19720#19349
20M → 21M21113+198#19349#19151
21M → 35K2230+223#19151#18928
35K → 23M3872+385#18928#18543
23M → 24M2960+296#18543#18247
24M → 40K2830+283#18247#17964
40K → 25.2M753+72#17964#17892
25.2M → Finish1715+166#17892#17726
TOTALS37171171+2546
📊

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