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BOSTON MARATHON 2025

Tae Ho Hwang

Bib: 1227•M

CA

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 20%
Gender (Male)
#0 / 16105
Top 32%
Division (M18-39)
#0 / 5642
Race Day Weather
50°/40°F
broken 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
5:54/mi
18:19
↑ 97↓ 3451.5%
10K· 6.21 mi
5:54/mi
36:40
↑ 79↓ 1380.4%
15K· 9.32 mi
5:59/mi
55:14
↑ 67↓ 78
20K· 12.43 mi
6:01/mi
1:13:56
↑ 106↓ 860.1%
Half· 13.11 mi
5:56/mi
1:17:59
↑ 19↓ 370.5%
25K· 15.53 mi
6:07/mi
1:32:50
↑ 66↓ 880.2%
30K· 18.64 mi
6:40/mi
1:53:33
↑ 181↓ 1480.2%
20M
7:02/mi
2:03:06
↑ 64↓ 500.2%
21M
7:50/mi
2:10:56
↑ 106↓ 241.6%
35K· 21.75 mi
11:10/mi
2:19:17
↑ 17↓ 861.7%
23M
9:16/mi
2:30:53
↑ 23↓ 630.6%
24M
14:51/mi
2:45:44
↓ 821.3%
40K· 24.85 mi
9:19/mi
2:53:42
↓ 200.3%
25.2M
10:38/mi
2:57:22
↑ 13↓ 160.2%
Finish· 26.22 mi
7:31/mi
3:05:02
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:17:59
Pace5:57 /mi
2nd Half
Distance13.11 mi
Time1:47:03
Pace8:10 /mi
📊Positive Split: 37.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:18:4718:195:5418:19
5:54
-
10K
6.21 mi10:37:0836:405:5418:21
5:54
0:00
15K
9.32 mi10:55:4255:145:5618:34
5:59
+0:05
20K
12.43 mi11:14:241:13:565:5718:42
6:01
+0:02
Half
13.11 mi11:18:271:17:595:574:03
5:56
-0:05
25K
15.53 mi11:33:181:32:505:5914:51
6:07
+0:11
30K
18.64 mi11:54:011:53:336:0520:43
6:40
+0:33
20M
20.00 mi12:03:342:03:066:099:33
7:02
+0:22
21M
21.00 mi12:11:242:10:566:147:50
7:50
+0:48
35K
21.75 mi12:19:452:19:176:248:21
11:10
+3:20
23M
23.00 mi12:31:212:30:536:3411:36
9:16
-1:54
24M
24.00 mi12:46:122:45:446:5414:51
14:51
+5:35
40K
24.85 mi12:54:102:53:426:597:58
9:19
-5:32
25.2M
25.20 mi12:57:502:57:227:023:40
10:38
+1:19
Finish
26.22 mi13:05:303:05:027:047:40
7:31
-3:07

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

5:54 /mi

Average Pace

7:04 /mi

Slowest Pace

14:51 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

0:00

0% of race

Time at Steady Pace

2:18:36

75% of race

Time at Slower Pace

46:26

25% of race

Average Pace: 7:03 /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 mi10:18:4718:195:5418:19
5:54
#788
10K
6.21 mi10:37:0836:405:5418:21
5:54
#818
15K
9.32 mi10:55:4255:145:5618:34
5:59
#862
20K
12.43 mi11:14:241:13:565:5718:42
6:01
#861
Half
13.11 mi11:18:271:17:595:574:03
5:56
#866
25K
15.53 mi11:33:181:32:505:5914:51
6:07
#887
30K
18.64 mi11:54:011:53:336:0520:43
6:40
#1097
20M
20.00 mi12:03:342:03:066:099:33
7:02
#1247
21M
21.00 mi12:11:242:10:566:147:50
7:50
#1398
35K
21.75 mi12:19:452:19:176:248:21
11:10
#2157
23M
23.00 mi12:31:212:30:536:3411:36
9:16
#2828
24M
24.00 mi12:46:122:45:446:5414:51
14:51
#5145
40K
24.85 mi12:54:102:53:426:597:58
9:19
#5500
25.2M
25.20 mi12:57:502:57:227:023:40
10:38
#5687
Finish
26.22 mi13:05:303:05:027:047:40
7:31
#5763
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi788735735965(Top 3%)912(Top 6%)912(Top 16%)
10K6.21 mi3.10 mi818-30766-31766-31846(Top 3%)794(Top 5%)794(Top 14%)
15K9.32 mi3.11 mi862-44810-44810-44965(Top 3%)912(Top 6%)912(Top 16%)
20K12.43 mi3.11 mi861+1809+1809+1920(Top 3%)868(Top 5%)868(Top 15%)
Half13.11 mi0.68 mi866-5815-6815-6971(Top 3%)921(Top 6%)921(Top 16%)
25K15.53 mi2.42 mi887-21835-20835-201189(Top 4%)1123(Top 7%)1123(Top 20%)
30K18.64 mi3.11 mi1097-2101033-1981033-1982722(Top 10%)2576(Top 16%)2576(Top 46%)
20M20.00 mi1.36 mi1247-1501177-1441177-1444279(Top 15%)3902(Top 24%)3902(Top 69%)
21M21.00 mi1.00 mi1398-1511320-1431320-1436343(Top 22%)5279(Top 33%)5279(Top 94%)
35K21.75 mi0.75 mi2157-7592056-7362056-73624523(Top 86%)14112(Top 88%)14112(Top 250%)
23M23.00 mi1.25 mi2828-6712682-6262682-62617601(Top 62%)10760(Top 67%)10760(Top 191%)
24M24.00 mi1.00 mi5145-23174692-20104692-201028013(Top 99%)15842(Top 98%)15842(Top 281%)
40K24.85 mi0.85 mi5500-3554966-2744966-27417893(Top 63%)10760(Top 67%)10760(Top 191%)
25.2M25.20 mi0.35 mi5687-1875103-1375103-13719392(Top 68%)11466(Top 71%)11466(Top 203%)
Finish26.22 mi1.02 mi5763-765139-365139-369304(Top 33%)6590(Top 41%)6590(Top 117%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 3%
×21story building
+97ft-345ft

Overall

965

Males

912

M18-39

912

5K→10K

3.1 - 6.2 mi

Top 3%
×5story building
+79ft-138ft

Overall

846

Males

794

M18-39

794

10K→15K

6.2 - 9.3 mi

Top 3%
×3story building
+67ft-78ft

Overall

965

Males

912

M18-39

912

15K→20K

9.3 - 12.4 mi

Top 3%
×5story building
+106ft-86ft

Overall

920

Males

868

M18-39

868

20K→Half

12.4 - 13.1 mi

Top 3%
×2story building
+19ft-37ft

Overall

971

Males

921

M18-39

921

Half→25K

13.1 - 15.5 mi

Top 4%
×4story building
+66ft-88ft

Overall

1189

Males

1123

M18-39

1123

25K→30K

15.5 - 18.6 mi

Top 10%
×9story building
+181ft-148ft

Overall

2722

Males

2576

M18-39

2576

30K→20M

18.6 - 20.0 mi

Top 15%
×5story building
+64ft-50ft

Overall

4279

Males

3902

M18-39

3902

20M→21M

20.0 - 21.0 mi

Top 22%
×8story building
+106ft-24ft

Overall

6343

Males

5279

M18-39

5279

21M→35K

21.0 - 21.8 mi

Top 86%
×7story building
+17ft-86ft

Overall

24523

Males

14112

M18-39

14112

35K→23M

21.8 - 23.0 mi

Top 62%
×5story building
+23ft-63ft

Overall

17601

Males

10760

M18-39

10760

23M→24M

23.0 - 24.0 mi

Top 99%
×6story building
+12ft-82ft

Overall

28013

Males

15842

M18-39

15842

24M→40K

24.0 - 24.9 mi

Top 63%
×1story
+6ft-20ft

Overall

17893

Males

10760

M18-39

10760

40K→25.2M

24.9 - 25.2 mi

Top 68%
×1story
+13ft-16ft

Overall

19392

Males

11466

M18-39

11466

25.2M→Finish

25.2 - 26.2 mi

Top 33%
×2story building
+22ft-21ft

Overall

9304

Males

6590

M18-39

6590

Passing Analysis

Category:
Athletes Passed
176
Passed By
5151
Net Change
-4975
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#788
5K → 10K3565-30#788#818
10K → 15K1155-44#818#862
15K → 20K3534+1#862#861
20K → Half38-5#861#866
Half → 25K1637-21#866#887
25K → 30K11221-210#887#1097
30K → 20M6156-150#1097#1247
20M → 21M5156-151#1247#1398
21M → 35K1760-759#1398#2157
35K → 23M3674-671#2157#2828
23M → 24M02317-2317#2828#5145
24M → 40K7362-355#5145#5500
40K → 25.2M6193-187#5500#5687
25.2M → Finish37113-76#5687#5763
TOTALS1765151-4975
📊

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