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BOSTON MARATHON 2024

Ji Lyu

Bib: 19580•F

ON

0:00
0:00
/ mi
Masters
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Overall
#0 / 25550
Top 38%
Gender (Female)
#0 / 10924
Top 24%
Masters (Masters Women)
#0 / 6263
Top 12%
Division (F50-54)
#0 / 1187
Top 7%
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
8:13/mi
25:33
↑ 97↓ 3451.5%
10K· 6.21 mi
7:56/mi
50:12
↑ 79↓ 1380.4%
15K· 9.32 mi
7:58/mi
1:14:56
↑ 67↓ 78
20K· 12.43 mi
8:10/mi
1:40:19
↑ 106↓ 860.1%
Half· 13.11 mi
7:49/mi
1:45:39
↑ 19↓ 370.5%
25K· 15.53 mi
8:05/mi
2:05:14
↑ 66↓ 880.2%
30K· 18.64 mi
8:11/mi
2:30:41
↑ 181↓ 1480.2%
20M
8:03/mi
2:41:38
↑ 64↓ 500.2%
21M
8:24/mi
2:50:02
↑ 106↓ 241.6%
35K· 21.75 mi
7:55/mi
2:55:57
↑ 17↓ 861.7%
23M
8:01/mi
3:05:59
↑ 23↓ 630.6%
24M
7:45/mi
3:13:44
↓ 821.3%
40K· 24.85 mi
7:49/mi
3:20:25
↓ 200.3%
25.2M
8:39/mi
3:23:24
↑ 13↓ 160.2%
Finish· 26.22 mi
7:34/mi
3:31:07
↑ 22↓ 21

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:45:39
Pace8:04 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:45:28
Pace8:03 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:26:0625:338:1325:33
8:13
-
10K
6.21 mi11:50:4550:128:0524:39
7:56
-0:17
15K
9.32 mi12:15:291:14:568:0224:44
7:58
+0:02
20K
12.43 mi12:40:521:40:198:0425:23
8:10
+0:12
Half
13.11 mi12:46:121:45:398:045:20
7:49
-0:21
25K
15.53 mi13:05:472:05:148:0419:35
8:05
+0:16
30K
18.64 mi13:31:142:30:418:0525:27
8:11
+0:06
20M
20.00 mi13:42:112:41:388:0510:57
8:03
-0:08
21M
21.00 mi13:50:352:50:028:068:24
8:24
+0:21
35K
21.75 mi13:56:302:55:578:055:55
7:55
-0:29
23M
23.00 mi14:06:323:05:598:0510:02
8:01
+0:06
24M
24.00 mi14:14:173:13:448:047:45
7:45
-0:16
40K
24.85 mi14:20:583:20:258:046:41
7:49
+0:04
25.2M
25.20 mi14:23:573:23:248:042:59
8:39
+0:50
Finish
26.22 mi14:31:403:31:078:037:43
7:34
-1:05

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

7:34 /mi

Average Pace

8:03 /mi

Slowest Pace

8:39 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:19:44

95% of race

Time at Steady Pace

11:23

5% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:03 /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 mi11:26:0625:338:1325:33
8:13
#16175
10K
6.21 mi11:50:4550:128:0524:39
7:56
#14978
15K
9.32 mi12:15:291:14:568:0224:44
7:58
#14318
20K
12.43 mi12:40:521:40:198:0425:23
8:10
#13884
Half
13.11 mi12:46:121:45:398:045:20
7:49
#13753
25K
15.53 mi13:05:472:05:148:0419:35
8:05
#13144
30K
18.64 mi13:31:142:30:418:0525:27
8:11
#12241
20M
20.00 mi13:42:112:41:388:0510:57
8:03
#11763
21M
21.00 mi13:50:352:50:028:068:24
8:24
#11312
35K
21.75 mi13:56:302:55:578:055:55
7:55
#11100
23M
23.00 mi14:06:323:05:598:0510:02
8:01
#10692
24M
24.00 mi14:14:173:13:448:047:45
7:45
#10380
40K
24.85 mi14:20:583:20:258:046:41
7:49
#10128
25.2M
25.20 mi14:23:573:23:248:042:59
8:39
#10015
Finish
26.22 mi14:31:403:31:078:037:43
7:34
#9821
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi161755663566313173(Top 52%)3897(Top 36%)3897(Top 328%)
10K6.21 mi3.10 mi14978+11974920+7434920+74313706(Top 54%)4164(Top 38%)4164(Top 351%)
15K9.32 mi3.11 mi14318+6604525+3954525+39513173(Top 52%)3897(Top 36%)3897(Top 328%)
20K12.43 mi3.11 mi13884+4344289+2364289+23612949(Top 51%)3815(Top 35%)3815(Top 321%)
Half13.11 mi0.68 mi13753+1314214+754214+7511491(Top 45%)3059(Top 28%)3059(Top 258%)
25K15.53 mi2.42 mi13144+6093887+3273887+32710679(Top 42%)2808(Top 26%)2808(Top 237%)
30K18.64 mi3.11 mi12241+9033480+4073480+4078972(Top 35%)2201(Top 20%)2201(Top 185%)
20M20.00 mi1.36 mi11763+4783273+2073273+2077136(Top 28%)1611(Top 15%)1611(Top 136%)
21M21.00 mi1.00 mi11312+4513099+1743099+1745806(Top 23%)1224(Top 11%)1224(Top 103%)
35K21.75 mi0.75 mi11100+2123024+753024+757262(Top 28%)1884(Top 17%)1884(Top 159%)
23M23.00 mi1.25 mi10692+4082876+1482876+1485845(Top 23%)1398(Top 13%)1398(Top 118%)
24M24.00 mi1.00 mi10380+3122771+1052771+1055329(Top 21%)1234(Top 11%)1234(Top 104%)
40K24.85 mi0.85 mi10128+2522681+902681+904900(Top 19%)1159(Top 11%)1159(Top 98%)
25.2M25.20 mi0.35 mi10015+1132639+422639+425145(Top 20%)1346(Top 12%)1346(Top 113%)
Finish26.22 mi1.02 mi9821+1942582+572582+576051(Top 24%)1688(Top 15%)1688(Top 142%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 52%
×21story building
+97ft-345ft

Overall

13173

Females

3897

F50-54

3897

5K→10K

3.1 - 6.2 mi

Top 54%
×5story building
+79ft-138ft

Overall

13706

Females

4164

F50-54

4164

10K→15K

6.2 - 9.3 mi

Top 52%
×3story building
+67ft-78ft

Overall

13173

Females

3897

F50-54

3897

15K→20K

9.3 - 12.4 mi

Top 51%
×5story building
+106ft-86ft

Overall

12949

Females

3815

F50-54

3815

20K→Half

12.4 - 13.1 mi

Top 45%
×2story building
+19ft-37ft

Overall

11491

Females

3059

F50-54

3059

Half→25K

13.1 - 15.5 mi

Top 42%
×4story building
+66ft-88ft

Overall

10679

Females

2808

F50-54

2808

25K→30K

15.5 - 18.6 mi

Top 35%
×9story building
+181ft-148ft

Overall

8972

Females

2201

F50-54

2201

30K→20M

18.6 - 20.0 mi

Top 28%
×5story building
+64ft-50ft

Overall

7136

Females

1611

F50-54

1611

20M→21M

20.0 - 21.0 mi

Top 23%
×8story building
+106ft-24ft

Overall

5806

Females

1224

F50-54

1224

21M→35K

21.0 - 21.8 mi

Top 28%
×7story building
+17ft-86ft

Overall

7262

Females

1884

F50-54

1884

35K→23M

21.8 - 23.0 mi

Top 23%
×5story building
+23ft-63ft

Overall

5845

Females

1398

F50-54

1398

23M→24M

23.0 - 24.0 mi

Top 21%
×6story building
+12ft-82ft

Overall

5329

Females

1234

F50-54

1234

24M→40K

24.0 - 24.9 mi

Top 19%
×1story
+6ft-20ft

Overall

4900

Females

1159

F50-54

1159

40K→25.2M

24.9 - 25.2 mi

Top 20%
×1story
+13ft-16ft

Overall

5145

Females

1346

F50-54

1346

25.2M→Finish

25.2 - 26.2 mi

Top 24%
×2story building
+22ft-21ft

Overall

6051

Females

1688

F50-54

1688

Passing Analysis

Category:
Athletes Passed
6501*
Passed By
147
Net Change
+6354
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#16175
5K → 10K122427+1197#16175#14978
10K → 15K68525+660#14978#14318
15K → 20K48753+434#14318#13884
20K → Half1310+131#13884#13753
Half → 25K61910+609#13753#13144
25K → 30K9129+903#13144#12241
30K → 20M4780+478#12241#11763
20M → 21M4521+451#11763#11312
21M → 35K2219+212#11312#11100
35K → 23M4091+408#11100#10692
23M → 24M3120+312#10692#10380
24M → 40K253*1+252#10380#10128
40K → 25.2M1163+113#10128#10015
25.2M → Finish202*8+194#10015#9821
TOTALS6501*147+6354

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

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