Boston Marathon logo
BOSTON MARATHON 2024

Chaewon Hwang

Bib: 26759•F

MA

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 25550
Gender (Female)
#0 / 10924
Division (F18-39)
#0 / 4660
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
10:41/mi
33:12
↑ 97↓ 3451.5%
10K· 6.21 mi
10:29/mi
1:05:46
↑ 79↓ 1380.4%
15K· 9.32 mi
10:09/mi
1:37:19
↑ 67↓ 78
20K· 12.43 mi
10:17/mi
2:09:16
↑ 106↓ 860.1%
Half· 13.11 mi
9:58/mi
2:16:04
↑ 19↓ 370.5%
25K· 15.53 mi
10:11/mi
2:40:45
↑ 66↓ 880.2%
30K· 18.64 mi
10:16/mi
3:12:39
↑ 181↓ 1480.2%
20M
10:03/mi
3:26:18
↑ 64↓ 500.2%
21M
9:51/mi
3:36:09
↑ 106↓ 241.6%
35K· 21.75 mi
9:45/mi
3:43:27
↑ 17↓ 861.7%
23M
9:32/mi
3:55:23
↑ 23↓ 630.6%
24M
9:11/mi
4:04:34
↓ 821.3%
40K· 24.85 mi
9:17/mi
4:12:30
↓ 200.3%
25.2M
10:15/mi
4:16:02
↑ 13↓ 160.2%
Finish· 26.22 mi
8:17/mi
4:24:28
↑ 22↓ 21

The Course

Is this your race?

Claim it — unlock a deeper AI report on this race, free

A personalized Race Performance Report that goes beyond this page — emailed to you, built from your real splits.

Half Splits

1st Half· via Half
Distance13.11 mi
Time2:16:04
Pace10:23 /mi
2nd Half✓ Faster
Distance13.11 mi
Time2:08:24
Pace9:48 /mi
📊Negative Split: 5.6% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:50:4533:1210:4133:12
10:41
-
10K
6.21 mi12:23:191:05:4610:3532:34
10:29
-0:12
15K
9.32 mi12:54:521:37:1910:2631:33
10:09
-0:20
20K
12.43 mi13:26:492:09:1610:2431:57
10:17
+0:08
Half
13.11 mi13:33:372:16:0410:236:48
9:58
-0:19
25K
15.53 mi13:58:182:40:4510:2124:41
10:11
+0:13
30K
18.64 mi14:30:123:12:3910:2031:54
10:16
+0:05
20M
20.00 mi14:43:513:26:1810:1913:39
10:03
-0:13
21M
21.00 mi14:53:423:36:0910:189:51
9:51
-0:12
35K
21.75 mi15:01:003:43:2710:167:18
9:45
-0:06
23M
23.00 mi15:12:563:55:2310:1411:56
9:32
-0:13
24M
24.00 mi15:22:074:04:3410:119:11
9:11
-0:21
40K
24.85 mi15:30:034:12:3010:107:56
9:17
+0:06
25.2M
25.20 mi15:33:354:16:0210:103:32
10:15
+0:58
Finish
26.22 mi15:42:014:24:2810:068:26
8:17
-1:58

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

8:17 /mi

Average Pace

10:06 /mi

Slowest Pace

10:41 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

44:47

17% of race

Time at Steady Pace

2:33:55

58% of race

Time at Slower Pace

1:05:46

25% of race

Average Pace: 10:05 /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 mi11:50:4533:1210:4133:12
10:41
#24412
10K
6.21 mi12:23:191:05:4610:3532:34
10:29
#23948
15K
9.32 mi12:54:521:37:1910:2631:33
10:09
#23372
20K
12.43 mi13:26:492:09:1610:2431:57
10:17
#22820
Half
13.11 mi13:33:372:16:0410:236:48
9:58
#22753
25K
15.53 mi13:58:182:40:4510:2124:41
10:11
#22294
30K
18.64 mi14:30:123:12:3910:2031:54
10:16
#21583
20M
20.00 mi14:43:513:26:1810:1913:39
10:03
#21251
21M
21.00 mi14:53:423:36:0910:189:51
9:51
#20885
35K
21.75 mi15:01:003:43:2710:167:18
9:45
#20711
23M
23.00 mi15:12:563:55:2310:1411:56
9:32
#20382
24M
24.00 mi15:22:074:04:3410:119:11
9:11
#20110
40K
24.85 mi15:30:034:12:3010:107:56
9:17
#19865
25.2M
25.20 mi15:33:354:16:0210:103:32
10:15
#19745
Finish
26.22 mi15:42:014:24:2810:068:26
8:17
#19473
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi24412101911019122238(Top 87%)9002(Top 82%)9002(Top 193%)
10K6.21 mi3.10 mi23948+4649919+2729919+27223494(Top 92%)9679(Top 89%)9679(Top 208%)
15K9.32 mi3.11 mi23372+5769607+3129607+31222238(Top 87%)9002(Top 82%)9002(Top 193%)
20K12.43 mi3.11 mi22820+5529315+2929315+29221200(Top 83%)8470(Top 78%)8470(Top 182%)
Half13.11 mi0.68 mi22753+679279+369279+3621398(Top 84%)8615(Top 79%)8615(Top 185%)
25K15.53 mi2.42 mi22294+4599071+2089071+20819618(Top 77%)7711(Top 71%)7711(Top 165%)
30K18.64 mi3.11 mi21583+7118749+3228749+32218169(Top 71%)7130(Top 65%)7130(Top 153%)
20M20.00 mi1.36 mi21251+3328595+1548595+15416660(Top 65%)6549(Top 60%)6549(Top 141%)
21M21.00 mi1.00 mi20885+3668422+1738422+17312393(Top 49%)4474(Top 41%)4474(Top 96%)
35K21.75 mi0.75 mi20711+1748355+678355+6716433(Top 64%)6587(Top 60%)6587(Top 141%)
23M23.00 mi1.25 mi20382+3298193+1628193+16213686(Top 54%)5264(Top 48%)5264(Top 113%)
24M24.00 mi1.00 mi20110+2728073+1208073+12013064(Top 51%)4969(Top 45%)4969(Top 107%)
40K24.85 mi0.85 mi19865+2457953+1207953+12012199(Top 48%)4643(Top 43%)4643(Top 100%)
25.2M25.20 mi0.35 mi19745+1207897+567897+5611978(Top 47%)4609(Top 42%)4609(Top 99%)
Finish26.22 mi1.02 mi19473+2727777+1207777+12010234(Top 40%)3632(Top 33%)3632(Top 78%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 87%
×21story building
+97ft-345ft

Overall

22238

Females

9002

F18-39

9002

5K→10K

3.1 - 6.2 mi

Top 92%
×5story building
+79ft-138ft

Overall

23494

Females

9679

F18-39

9679

10K→15K

6.2 - 9.3 mi

Top 87%
×3story building
+67ft-78ft

Overall

22238

Females

9002

F18-39

9002

15K→20K

9.3 - 12.4 mi

Top 83%
×5story building
+106ft-86ft

Overall

21200

Females

8470

F18-39

8470

20K→Half

12.4 - 13.1 mi

Top 84%
×2story building
+19ft-37ft

Overall

21398

Females

8615

F18-39

8615

Half→25K

13.1 - 15.5 mi

Top 77%
×4story building
+66ft-88ft

Overall

19618

Females

7711

F18-39

7711

25K→30K

15.5 - 18.6 mi

Top 71%
×9story building
+181ft-148ft

Overall

18169

Females

7130

F18-39

7130

30K→20M

18.6 - 20.0 mi

Top 65%
×5story building
+64ft-50ft

Overall

16660

Females

6549

F18-39

6549

20M→21M

20.0 - 21.0 mi

Top 49%
×8story building
+106ft-24ft

Overall

12393

Females

4474

F18-39

4474

21M→35K

21.0 - 21.8 mi

Top 64%
×7story building
+17ft-86ft

Overall

16433

Females

6587

F18-39

6587

35K→23M

21.8 - 23.0 mi

Top 54%
×5story building
+23ft-63ft

Overall

13686

Females

5264

F18-39

5264

23M→24M

23.0 - 24.0 mi

Top 51%
×6story building
+12ft-82ft

Overall

13064

Females

4969

F18-39

4969

24M→40K

24.0 - 24.9 mi

Top 48%
×1story
+6ft-20ft

Overall

12199

Females

4643

F18-39

4643

40K→25.2M

24.9 - 25.2 mi

Top 47%
×1story
+13ft-16ft

Overall

11978

Females

4609

F18-39

4609

25.2M→Finish

25.2 - 26.2 mi

Top 40%
×2story building
+22ft-21ft

Overall

10234

Females

3632

F18-39

3632

Passing Analysis

Category:
Athletes Passed
5000
Passed By
61
Net Change
+4939
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#24412
5K → 10K49329+464#24412#23948
10K → 15K58913+576#23948#23372
15K → 20K5553+552#23372#22820
20K → Half714+67#22820#22753
Half → 25K4601+459#22753#22294
25K → 30K7154+711#22294#21583
30K → 20M3331+332#21583#21251
20M → 21M3660+366#21251#20885
21M → 35K1773+174#20885#20711
35K → 23M3301+329#20711#20382
23M → 24M2731+272#20382#20110
24M → 40K2450+245#20110#19865
40K → 25.2M1200+120#19865#19745
25.2M → Finish2731+272#19745#19473
TOTALS500061+4939
📊

Passing Visuals

Category:
Loading...

🔄Passing Circle

Loading...

🌊Position Flow

Loading...

🏃Race Lanes

Loading...

Upload your GPX file

Supports Garmin, Apple Watch, Polar, Suunto, COROS, Strava, and other apps

.gpx files up to 10MB

Export Track Data

Download your race performance as a GPX or TCX file to import into Strava, Garmin Connect, or other fitness apps.

Questions or issues regarding timing data?

If you notice any discrepancies in your timing data or have questions about your results, our support team can help.

Contact Race Support

Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing