Boston Marathon logo
BOSTON MARATHON 2025

Tjung Chian

Bib: 30227•M

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 28404
Gender (Male)
#0 / 16105
Masters (Masters Men)
#0 / 10463
Division (M45-49)
#0 / 2386
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
30:42
Rank: #25296
Start → 5K
9:53/mi
30:42 split
10K· 6.21 mi
1:00:25
Rank: #24791 (+505)
5K → 10K
9:34/mi
29:43 split
15K· 9.32 mi
1:29:12
Rank: #24236 (+555)
10K → 15K
9:16/mi
28:47 split
20K· 12.43 mi
1:59:00
Rank: #23935 (+301)
15K → 20K
9:36/mi
29:48 split
Half· 13.11 mi
2:05:25
Rank: #23908 (+27)
20K → Half
9:24/mi
6:25 split
25K· 15.53 mi
2:29:11
Rank: #23699 (+209)
Half → 25K
9:48/mi
23:46 split
30K· 18.64 mi
3:01:41
Rank: #23521 (+178)
25K → 30K
10:28/mi
32:30 split
20M
3:15:43
Rank: #23386 (+135)
30K → 20M
10:20/mi
14:02 split
21M
3:27:58
Rank: #23448 (-62)
20M → 21M
12:15/mi
12:15 split
35K· 21.75 mi
3:36:33
Rank: #23530 (-82)
21M → 35K
11:28/mi
8:35 split
23M
3:50:20
Rank: #23507 (+23)
35K → 23M
11:01/mi
13:47 split
24M
4:00:54
Rank: #23474 (+33)
23M → 24M
10:34/mi
10:34 split
40K· 24.85 mi
4:10:55
Rank: #23559 (-85)
24M → 40K
11:43/mi
10:01 split
25.2M
4:15:13
Rank: #23573 (-14)
40K → 25.2M
12:28/mi
4:18 split
Finish· 26.22 mi
4:26:37
Rank: #23663 (-90)
25.2M → Finish
11:11/mi
11:24 split

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 HalfFaster
Distance13.11 mi
Time2:05:25
Pace9:34 /mi
2nd Half
Distance13.11 mi
Time2:21:12
Pace10:46 /mi
📊Positive Split: 12.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:51:5330:429:5330:42
9:53
-
10K
6.21 mi12:21:361:00:259:4329:43
9:34
-0:19
15K
9.32 mi12:50:231:29:129:3428:47
9:16
-0:18
20K
12.43 mi13:20:111:59:009:3529:48
9:36
+0:20
Half
13.11 mi13:26:362:05:259:346:25
9:24
-0:12
25K
15.53 mi13:50:222:29:119:3623:46
9:48
+0:24
30K
18.64 mi14:22:523:01:419:4532:30
10:28
+0:40
20M
20.00 mi14:36:543:15:439:4714:02
10:20
-0:08
21M
21.00 mi14:49:093:27:589:5412:15
12:15
+1:55
35K
21.75 mi14:57:443:36:339:578:35
11:28
-0:47
23M
23.00 mi15:11:313:50:2010:0113:47
11:01
-0:27
24M
24.00 mi15:22:054:00:5410:0210:34
10:34
-0:27
40K
24.85 mi15:32:064:10:5510:0610:01
11:43
+1:09
25.2M
25.20 mi15:36:244:15:1310:084:18
12:28
+0:45
Finish
26.22 mi15:47:484:26:3710:1111:24
11:11
-1:17

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

9:16 /mi

Average Pace

10:11 /mi

Slowest Pace

12:28 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:29:11

56% of race

Time at Steady Pace

57:06

21% of race

Time at Slower Pace

1:00:20

23% of race

Average Pace: 10:10 /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 mi11:51:5330:429:5330:42
9:53
#25296
10K
6.21 mi12:21:361:00:259:4329:43
9:34
#24791
15K
9.32 mi12:50:231:29:129:3428:47
9:16
#24236
20K
12.43 mi13:20:111:59:009:3529:48
9:36
#23935
Half
13.11 mi13:26:362:05:259:346:25
9:24
#23908
25K
15.53 mi13:50:222:29:119:3623:46
9:48
#23699
30K
18.64 mi14:22:523:01:419:4532:30
10:28
#23521
20M
20.00 mi14:36:543:15:439:4714:02
10:20
#23386
21M
21.00 mi14:49:093:27:589:5412:15
12:15
#23448
35K
21.75 mi14:57:443:36:339:578:35
11:28
#23530
23M
23.00 mi15:11:313:50:2010:0113:47
11:01
#23507
24M
24.00 mi15:22:054:00:5410:0210:34
10:34
#23474
40K
24.85 mi15:32:064:10:5510:0610:01
11:43
#23559
25.2M
25.20 mi15:36:244:15:1310:084:18
12:28
#23573
Finish
26.22 mi15:47:484:26:3710:1111:24
11:11
#23663
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi25296148581485823090(Top 81%)13884(Top 86%)13884(Top 582%)
10K6.21 mi3.10 mi24791+50514613+24514613+24524264(Top 85%)14360(Top 89%)14360(Top 602%)
15K9.32 mi3.11 mi24236+55514362+25114362+25123090(Top 81%)13884(Top 86%)13884(Top 582%)
20K12.43 mi3.11 mi23935+30114216+14614216+14623177(Top 82%)13881(Top 86%)13881(Top 582%)
Half13.11 mi0.68 mi23908+2714201+1514201+1523268(Top 82%)13913(Top 86%)13913(Top 583%)
25K15.53 mi2.42 mi23699+20914113+8814113+8822770(Top 80%)13641(Top 85%)13641(Top 572%)
30K18.64 mi3.11 mi23521+17813995+11813995+11822848(Top 80%)13552(Top 84%)13552(Top 568%)
20M20.00 mi1.36 mi23386+13513916+7913916+7921942(Top 77%)13031(Top 81%)13031(Top 546%)
21M21.00 mi1.00 mi23448-6213913+313913+324014(Top 85%)13913(Top 86%)13913(Top 583%)
35K21.75 mi0.75 mi23530-8213942-2913942-2925046(Top 88%)14372(Top 89%)14372(Top 602%)
23M23.00 mi1.25 mi23507+2313915+2713915+2723240(Top 82%)13452(Top 84%)13452(Top 564%)
24M24.00 mi1.00 mi23474+3313889+2613889+2622993(Top 81%)13304(Top 83%)13304(Top 558%)
40K24.85 mi0.85 mi23559-8513902-1313902-1324501(Top 86%)14018(Top 87%)14018(Top 588%)
25.2M25.20 mi0.35 mi23573-1413899+313899+324124(Top 85%)13827(Top 86%)13827(Top 580%)
Finish26.22 mi1.02 mi23663-9013930-3113930-3125680(Top 90%)14620(Top 91%)14620(Top 613%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 81%
×21stories
+97ft-345ft

Overall

23090

Males

13884

M45-49

13884

5K→10K

3.1 - 6.2 mi

Top 85%
×5stories
+79ft-138ft

Overall

24264

Males

14360

M45-49

14360

10K→15K

6.2 - 9.3 mi

Top 81%
×3stories
+67ft-78ft

Overall

23090

Males

13884

M45-49

13884

15K→20K

9.3 - 12.4 mi

Top 82%
×5stories
+106ft-86ft

Overall

23177

Males

13881

M45-49

13881

20K→Half

12.4 - 13.1 mi

Top 82%
×2stories
+19ft-37ft

Overall

23268

Males

13913

M45-49

13913

Half→25K

13.1 - 15.5 mi

Top 80%
×4stories
+66ft-88ft

Overall

22770

Males

13641

M45-49

13641

25K→30K

15.5 - 18.6 mi

Top 80%
×9stories
+181ft-148ft

Overall

22848

Males

13552

M45-49

13552

30K→20M

18.6 - 20.0 mi

Top 77%
×5stories
+64ft-50ft

Overall

21942

Males

13031

M45-49

13031

20M→21M

20.0 - 21.0 mi

Top 85%
×8stories
+106ft-24ft

Overall

24014

Males

13913

M45-49

13913

21M→35K

21.0 - 21.8 mi

Top 88%
×7stories
+17ft-86ft

Overall

25046

Males

14372

M45-49

14372

35K→23M

21.8 - 23.0 mi

Top 82%
×5stories
+23ft-63ft

Overall

23240

Males

13452

M45-49

13452

23M→24M

23.0 - 24.0 mi

Top 81%
×6stories
+12ft-82ft

Overall

22993

Males

13304

M45-49

13304

24M→40K

24.0 - 24.9 mi

Top 86%
×1story
+6ft-20ft

Overall

24501

Males

14018

M45-49

14018

40K→25.2M

24.9 - 25.2 mi

Top 85%
×1story
+13ft-16ft

Overall

24124

Males

13827

M45-49

13827

25.2M→Finish

25.2 - 26.2 mi

Top 90%
×2stories
+22ft-21ft

Overall

25680

Males

14620

M45-49

14620

Passing Analysis

Category:
Athletes Passed
2365
Passed By
732
Net Change
+1633
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#25296
5K → 10K53732+505#25296#24791
10K → 15K5627+555#24791#24236
15K → 20K32019+301#24236#23935
20K → Half336+27#23935#23908
Half → 25K23122+209#23908#23699
25K → 30K24971+178#23699#23521
30K → 20M15015+135#23521#23386
20M → 21M58120-62#23386#23448
21M → 35K24106-82#23448#23530
35K → 23M8360+23#23530#23507
23M → 24M5926+33#23507#23474
24M → 40K22107-85#23474#23559
40K → 25.2M1832-14#23559#23573
25.2M → Finish19109-90#23573#23663
TOTALS2365732+1633
📊

Passing Visuals

Category:
Loading...

🔥Passing Intensity

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
Share Feedback

Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing