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BOSTON MARATHON 2024

Chien-Li Lien

Bib: 7458•F

0:00
0:00
/ mi
Masters
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Overall
#0 / 25550
Top 22%
Gender (Female)
#0 / 10924
Top 7%
Masters (Masters Women)
#0 / 6263
Top 2%
Division (F50-54)
#0 / 1187
Top 0.7%
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
6:49/mi
21:12
↑ 97↓ 3451.5%
10K· 6.21 mi
6:58/mi
42:51
↑ 79↓ 1380.4%
15K· 9.32 mi
7:07/mi
1:04:57
↑ 67↓ 78
20K· 12.43 mi
7:23/mi
1:27:54
↑ 106↓ 860.1%
Half· 13.11 mi
7:12/mi
1:32:49
↑ 19↓ 370.5%
25K· 15.53 mi
7:25/mi
1:50:49
↑ 66↓ 880.2%
30K· 18.64 mi
7:44/mi
2:14:51
↑ 181↓ 1480.2%
20M
7:52/mi
2:25:32
↑ 64↓ 500.2%
21M
8:21/mi
2:33:53
↑ 106↓ 241.6%
35K· 21.75 mi
7:29/mi
2:39:29
↑ 17↓ 861.7%
23M
7:43/mi
2:49:09
↑ 23↓ 630.6%
24M
7:35/mi
2:56:44
↓ 821.3%
40K· 24.85 mi
7:51/mi
3:03:27
↓ 200.3%
25.2M
8:36/mi
3:06:25
↑ 13↓ 160.2%
Finish· 26.22 mi
7:41/mi
3:14:15
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:32:49
Pace7:05 /mi
2nd Half
Distance13.11 mi
Time1:41:26
Pace7:44 /mi
📊Positive Split: 9.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:27:4521:126:4921:12
6:49
-
10K
6.21 mi10:49:2442:516:5421:39
6:58
+0:09
15K
9.32 mi11:11:301:04:576:5822:06
7:07
+0:09
20K
12.43 mi11:34:271:27:547:0422:57
7:23
+0:16
Half
13.11 mi11:39:221:32:497:054:55
7:12
-0:11
25K
15.53 mi11:57:221:50:497:0818:00
7:25
+0:13
30K
18.64 mi12:21:242:14:517:1424:02
7:44
+0:19
20M
20.00 mi12:32:052:25:327:1710:41
7:52
+0:08
21M
21.00 mi12:40:262:33:537:208:21
8:21
+0:29
35K
21.75 mi12:46:022:39:297:205:36
7:29
-0:52
23M
23.00 mi12:55:422:49:097:219:40
7:43
+0:14
24M
24.00 mi13:03:172:56:447:227:35
7:35
-0:08
40K
24.85 mi13:10:003:03:277:236:43
7:51
+0:16
25.2M
25.20 mi13:12:583:06:257:242:58
8:36
+0:45
Finish
26.22 mi13:20:483:14:157:257:50
7:41
-0:55

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

6:49 /mi

Average Pace

7:25 /mi

Slowest Pace

8:36 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:09:52

36% of race

Time at Steady Pace

1:35:40

49% of race

Time at Slower Pace

28:43

15% of race

Average Pace: 7:25 /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 mi10:27:4521:126:4921:12
6:49
#5858
10K
6.21 mi10:49:2442:516:5421:39
6:58
#6144
15K
9.32 mi11:11:301:04:576:5822:06
7:07
#6381
20K
12.43 mi11:34:271:27:547:0422:57
7:23
#6619
Half
13.11 mi11:39:221:32:497:054:55
7:12
#6632
25K
15.53 mi11:57:221:50:497:0818:00
7:25
#6547
30K
18.64 mi12:21:242:14:517:1424:02
7:44
#6382
20M
20.00 mi12:32:052:25:327:1710:41
7:52
#6261
21M
21.00 mi12:40:262:33:537:208:21
8:21
#6132
35K
21.75 mi12:46:022:39:297:205:36
7:29
#6024
23M
23.00 mi12:55:422:49:097:219:40
7:43
#5831
24M
24.00 mi13:03:172:56:447:227:35
7:35
#5700
40K
24.85 mi13:10:003:03:277:236:43
7:51
#5585
25.2M
25.20 mi13:12:583:06:257:242:58
8:36
#5545
Finish
26.22 mi13:20:483:14:157:257:50
7:41
#5522
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi58585145146891(Top 27%)879(Top 8%)879(Top 74%)
10K6.21 mi3.10 mi6144-286596-82596-826470(Top 25%)717(Top 7%)717(Top 60%)
15K9.32 mi3.11 mi6381-237672-76672-766891(Top 27%)879(Top 8%)879(Top 74%)
20K12.43 mi3.11 mi6619-238770-98770-987550(Top 30%)1197(Top 11%)1197(Top 101%)
Half13.11 mi0.68 mi6632-13777-7777-77062(Top 28%)1006(Top 9%)1006(Top 85%)
25K15.53 mi2.42 mi6547+85787-10787-106551(Top 26%)992(Top 9%)992(Top 84%)
30K18.64 mi3.11 mi6382+165798-11798-116337(Top 25%)1093(Top 10%)1093(Top 92%)
20M20.00 mi1.36 mi6261+121803-5803-56040(Top 24%)1147(Top 10%)1147(Top 97%)
21M21.00 mi1.00 mi6132+129793+10793+105551(Top 22%)1096(Top 10%)1096(Top 92%)
35K21.75 mi0.75 mi6024+108781+12781+125020(Top 20%)885(Top 8%)885(Top 75%)
23M23.00 mi1.25 mi5831+193763+18763+184481(Top 18%)792(Top 7%)792(Top 67%)
24M24.00 mi1.00 mi5700+131747+16747+164478(Top 18%)871(Top 8%)871(Top 73%)
40K24.85 mi0.85 mi5585+115745+2745+25078(Top 20%)1214(Top 11%)1214(Top 102%)
25.2M25.20 mi0.35 mi5545+40752-7752-74890(Top 19%)1193(Top 11%)1193(Top 101%)
Finish26.22 mi1.02 mi5522+23772-20772-206670(Top 26%)1953(Top 18%)1953(Top 165%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 27%
×21story building
+97ft-345ft

Overall

6891

Females

879

F50-54

879

5K→10K

3.1 - 6.2 mi

Top 25%
×5story building
+79ft-138ft

Overall

6470

Females

717

F50-54

717

10K→15K

6.2 - 9.3 mi

Top 27%
×3story building
+67ft-78ft

Overall

6891

Females

879

F50-54

879

15K→20K

9.3 - 12.4 mi

Top 30%
×5story building
+106ft-86ft

Overall

7550

Females

1197

F50-54

1197

20K→Half

12.4 - 13.1 mi

Top 28%
×2story building
+19ft-37ft

Overall

7062

Females

1006

F50-54

1006

Half→25K

13.1 - 15.5 mi

Top 26%
×4story building
+66ft-88ft

Overall

6551

Females

992

F50-54

992

25K→30K

15.5 - 18.6 mi

Top 25%
×9story building
+181ft-148ft

Overall

6337

Females

1093

F50-54

1093

30K→20M

18.6 - 20.0 mi

Top 24%
×5story building
+64ft-50ft

Overall

6040

Females

1147

F50-54

1147

20M→21M

20.0 - 21.0 mi

Top 22%
×8story building
+106ft-24ft

Overall

5551

Females

1096

F50-54

1096

21M→35K

21.0 - 21.8 mi

Top 20%
×7story building
+17ft-86ft

Overall

5020

Females

885

F50-54

885

35K→23M

21.8 - 23.0 mi

Top 18%
×5story building
+23ft-63ft

Overall

4481

Females

792

F50-54

792

23M→24M

23.0 - 24.0 mi

Top 18%
×6story building
+12ft-82ft

Overall

4478

Females

871

F50-54

871

24M→40K

24.0 - 24.9 mi

Top 20%
×1story
+6ft-20ft

Overall

5078

Females

1214

F50-54

1214

40K→25.2M

24.9 - 25.2 mi

Top 19%
×1story
+13ft-16ft

Overall

4890

Females

1193

F50-54

1193

25.2M→Finish

25.2 - 26.2 mi

Top 26%
×2story building
+22ft-21ft

Overall

6670

Females

1953

F50-54

1953

Passing Analysis

Category:
Athletes Passed
1881
Passed By
1545
Net Change
+336
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#5858
5K → 10K102388-286#5858#6144
10K → 15K76313-237#6144#6381
15K → 20K104342-238#6381#6619
20K → Half2336-13#6619#6632
Half → 25K188103+85#6632#6547
25K → 30K292127+165#6547#6382
30K → 20M17251+121#6382#6261
20M → 21M16940+129#6261#6132
21M → 35K12113+108#6132#6024
35K → 23M21926+193#6024#5831
23M → 24M14413+131#5831#5700
24M → 40K13217+115#5700#5585
40K → 25.2M5919+40#5585#5545
25.2M → Finish8057+23#5545#5522
TOTALS18811545+336
📊

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