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BOSTON MARATHON 2025

Tiecheng Dai

Bib: 18278•M

CT

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 49%
Gender (Male)
#0 / 16105
Masters (Masters Men)
#0 / 10463
Division (M60-64)
#0 / 1259
Top 20%
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
7:47/mi
24:10
↑ 97↓ 3451.5%
10K· 6.21 mi
7:48/mi
48:23
↑ 79↓ 1380.4%
15K· 9.32 mi
7:51/mi
1:12:47
↑ 67↓ 78
20K· 12.43 mi
8:02/mi
1:37:44
↑ 106↓ 860.1%
Half· 13.11 mi
7:56/mi
1:43:09
↑ 19↓ 370.5%
25K· 15.53 mi
8:09/mi
2:02:55
↑ 66↓ 880.2%
30K· 18.64 mi
8:28/mi
2:29:14
↑ 181↓ 1480.2%
20M
8:24/mi
2:40:39
↑ 64↓ 500.2%
21M
9:02/mi
2:49:41
↑ 106↓ 241.6%
35K· 21.75 mi
8:13/mi
2:55:50
↑ 17↓ 861.7%
23M
8:18/mi
3:06:14
↑ 23↓ 630.6%
24M
8:04/mi
3:14:18
↓ 821.3%
40K· 24.85 mi
8:12/mi
3:21:19
↓ 200.3%
25.2M
9:08/mi
3:24:28
↑ 13↓ 160.2%
Finish· 26.22 mi
7:58/mi
3:32:35
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:43:09
Pace7:52 /mi
2nd Half
Distance13.11 mi
Time1:49:26
Pace8:21 /mi
📊Positive Split: 6.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:16:0924:107:4724:10
7:47
-
10K
6.21 mi11:40:2248:237:4724:13
7:48
+0:01
15K
9.32 mi12:04:461:12:477:4924:24
7:51
+0:03
20K
12.43 mi12:29:431:37:447:5224:57
8:02
+0:11
Half
13.11 mi12:35:081:43:097:525:25
7:56
-0:06
25K
15.53 mi12:54:542:02:557:5519:46
8:09
+0:13
30K
18.64 mi13:21:132:29:148:0026:19
8:28
+0:19
20M
20.00 mi13:32:382:40:398:0211:25
8:24
-0:04
21M
21.00 mi13:41:402:49:418:059:02
9:02
+0:38
35K
21.75 mi13:47:492:55:508:056:09
8:13
-0:49
23M
23.00 mi13:58:133:06:148:0610:24
8:18
+0:05
24M
24.00 mi14:06:173:14:188:068:04
8:04
-0:14
40K
24.85 mi14:13:183:21:198:067:01
8:12
+0:08
25.2M
25.20 mi14:16:273:24:288:073:09
9:08
+0:56
Finish
26.22 mi14:24:343:32:358:078:07
7:58
-1:10

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

7:47 /mi

Average Pace

8:07 /mi

Slowest Pace

9:08 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:20:24

94% of race

Time at Steady Pace

12:11

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:06 /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 mi11:16:0924:107:4724:10
7:47
#14604
10K
6.21 mi11:40:2248:237:4724:13
7:48
#14645
15K
9.32 mi12:04:461:12:477:4924:24
7:51
#14690
20K
12.43 mi12:29:431:37:447:5224:57
8:02
#14791
Half
13.11 mi12:35:081:43:097:525:25
7:56
#14815
25K
15.53 mi12:54:542:02:557:5519:46
8:09
#14827
30K
18.64 mi13:21:132:29:148:0026:19
8:28
#14781
20M
20.00 mi13:32:382:40:398:0211:25
8:24
#14606
21M
21.00 mi13:41:402:49:418:059:02
9:02
#14502
35K
21.75 mi13:47:492:55:508:056:09
8:13
#14466
23M
23.00 mi13:58:133:06:148:0610:24
8:18
#14319
24M
24.00 mi14:06:173:14:188:068:04
8:04
#14167
40K
24.85 mi14:13:183:21:198:067:01
8:12
#14040
25.2M
25.20 mi14:16:273:24:288:073:09
9:08
#14002
Finish
26.22 mi14:24:343:32:358:078:07
7:58
#13913
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM60-64Seg. OverallSeg. MalesSeg. M60-64
5K3.11 mi3.11 mi14604102751027514830(Top 52%)10294(Top 64%)10294(Top 818%)
10K6.21 mi3.10 mi14645-4110269+610269+614734(Top 52%)10307(Top 64%)10307(Top 819%)
15K9.32 mi3.11 mi14690-4510279-1010279-1014830(Top 52%)10294(Top 64%)10294(Top 818%)
20K12.43 mi3.11 mi14791-101102791027915140(Top 53%)10380(Top 64%)10380(Top 824%)
Half13.11 mi0.68 mi14815-2410287-810287-815340(Top 54%)10477(Top 65%)10477(Top 832%)
25K15.53 mi2.42 mi14827-1210261+2610261+2614977(Top 53%)10210(Top 63%)10210(Top 811%)
30K18.64 mi3.11 mi14781+4610187+7410187+7414572(Top 51%)9866(Top 61%)9866(Top 784%)
20M20.00 mi1.36 mi14606+17510089+9810089+9813151(Top 46%)9060(Top 56%)9060(Top 720%)
21M21.00 mi1.00 mi14502+10410019+7010019+7013694(Top 48%)9193(Top 57%)9193(Top 730%)
35K21.75 mi0.75 mi14466+369991+289991+2813728(Top 48%)9151(Top 57%)9151(Top 727%)
23M23.00 mi1.25 mi14319+1479890+1019890+10112073(Top 43%)8273(Top 51%)8273(Top 657%)
24M24.00 mi1.00 mi14167+1529780+1109780+11011695(Top 41%)8010(Top 50%)8010(Top 636%)
40K24.85 mi0.85 mi14040+1279702+789702+7811589(Top 41%)7867(Top 49%)7867(Top 625%)
25.2M25.20 mi0.35 mi14002+389670+329670+3212524(Top 44%)8252(Top 51%)8252(Top 655%)
Finish26.22 mi1.02 mi13913+899601+699601+6912640(Top 45%)8358(Top 52%)8358(Top 664%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 52%
×21story building
+97ft-345ft

Overall

14830

Males

10294

M60-64

10294

5K→10K

3.1 - 6.2 mi

Top 52%
×5story building
+79ft-138ft

Overall

14734

Males

10307

M60-64

10307

10K→15K

6.2 - 9.3 mi

Top 52%
×3story building
+67ft-78ft

Overall

14830

Males

10294

M60-64

10294

15K→20K

9.3 - 12.4 mi

Top 53%
×5story building
+106ft-86ft

Overall

15140

Males

10380

M60-64

10380

20K→Half

12.4 - 13.1 mi

Top 54%
×2story building
+19ft-37ft

Overall

15340

Males

10477

M60-64

10477

Half→25K

13.1 - 15.5 mi

Top 53%
×4story building
+66ft-88ft

Overall

14977

Males

10210

M60-64

10210

25K→30K

15.5 - 18.6 mi

Top 51%
×9story building
+181ft-148ft

Overall

14572

Males

9866

M60-64

9866

30K→20M

18.6 - 20.0 mi

Top 46%
×5story building
+64ft-50ft

Overall

13151

Males

9060

M60-64

9060

20M→21M

20.0 - 21.0 mi

Top 48%
×8story building
+106ft-24ft

Overall

13694

Males

9193

M60-64

9193

21M→35K

21.0 - 21.8 mi

Top 48%
×7story building
+17ft-86ft

Overall

13728

Males

9151

M60-64

9151

35K→23M

21.8 - 23.0 mi

Top 43%
×5story building
+23ft-63ft

Overall

12073

Males

8273

M60-64

8273

23M→24M

23.0 - 24.0 mi

Top 41%
×6story building
+12ft-82ft

Overall

11695

Males

8010

M60-64

8010

24M→40K

24.0 - 24.9 mi

Top 41%
×1story
+6ft-20ft

Overall

11589

Males

7867

M60-64

7867

40K→25.2M

24.9 - 25.2 mi

Top 44%
×1story
+13ft-16ft

Overall

12524

Males

8252

M60-64

8252

25.2M→Finish

25.2 - 26.2 mi

Top 45%
×2story building
+22ft-21ft

Overall

12640

Males

8358

M60-64

8358

Passing Analysis

Category:
Athletes Passed
2255
Passed By
1564
Net Change
+691
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#14604
5K → 10K275316-41#14604#14645
10K → 15K180225-45#14645#14690
15K → 20K188289-101#14690#14791
20K → Half2852-24#14791#14815
Half → 25K175187-12#14815#14827
25K → 30K276230+46#14827#14781
30K → 20M22146+175#14781#14606
20M → 21M16561+104#14606#14502
21M → 35K7741+36#14502#14466
35K → 23M17932+147#14466#14319
23M → 24M16917+152#14319#14167
24M → 40K13912+127#14167#14040
40K → 25.2M5719+38#14040#14002
25.2M → Finish12637+89#14002#13913
TOTALS22551564+691
📊

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