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BOSTON MARATHON 2025

Zhengxiang Pan

Bib: 11940•M

NJ

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 28%
Gender (Male)
#0 / 16105
Top 41%
Masters (Masters Men)
#0 / 10463
Top 28%
Division (M55-59)
#0 / 1648
Top 10%
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
7:24/mi
22:59
↑ 97↓ 3451.5%
10K· 6.21 mi
7:07/mi
45:07
↑ 79↓ 1380.4%
15K· 9.32 mi
7:06/mi
1:07:09
↑ 67↓ 78
20K· 12.43 mi
7:13/mi
1:29:35
↑ 106↓ 860.1%
Half· 13.11 mi
6:58/mi
1:34:20
↑ 19↓ 370.5%
25K· 15.53 mi
7:18/mi
1:52:03
↑ 66↓ 880.2%
30K· 18.64 mi
7:32/mi
2:15:28
↑ 181↓ 1480.2%
20M
7:24/mi
2:25:31
↑ 64↓ 500.2%
21M
8:22/mi
2:33:53
↑ 106↓ 241.6%
35K· 21.75 mi
7:06/mi
2:39:12
↑ 17↓ 861.7%
23M
7:34/mi
2:48:41
↑ 23↓ 630.6%
24M
7:16/mi
2:55:57
↓ 821.3%
40K· 24.85 mi
7:34/mi
3:02:25
↓ 200.3%
25.2M
8:30/mi
3:05:21
↑ 13↓ 160.2%
Finish· 26.22 mi
7:32/mi
3:13:02
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:34:20
Pace7:12 /mi
2nd Half
Distance13.11 mi
Time1:38:42
Pace7:32 /mi
📊Positive Split: 4.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:51:1322:597:2422:59
7:24
-
10K
6.21 mi11:13:2145:077:1622:08
7:07
-0:17
15K
9.32 mi11:35:231:07:097:1222:02
7:06
-0:01
20K
12.43 mi11:57:491:29:357:1322:26
7:13
+0:07
Half
13.11 mi12:02:341:34:207:124:45
6:58
-0:15
25K
15.53 mi12:20:171:52:037:1317:43
7:18
+0:20
30K
18.64 mi12:43:422:15:287:1623:25
7:32
+0:14
20M
20.00 mi12:53:452:25:317:1710:03
7:24
-0:08
21M
21.00 mi13:02:072:33:537:208:22
8:22
+0:58
35K
21.75 mi13:07:262:39:127:195:19
7:06
-1:16
23M
23.00 mi13:16:552:48:417:209:29
7:34
+0:28
24M
24.00 mi13:24:112:55:577:207:16
7:16
-0:18
40K
24.85 mi13:30:393:02:257:206:28
7:34
+0:18
25.2M
25.20 mi13:33:353:05:217:212:56
8:30
+0:56
Finish
26.22 mi13:41:163:13:027:227:41
7:32
-0:58

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

6:58 /mi

Average Pace

7:22 /mi

Slowest Pace

8:30 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

54:14

28% of race

Time at Steady Pace

2:07:30

66% of race

Time at Slower Pace

11:18

6% of race

Average Pace: 7:22 /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 mi10:51:1322:597:2422:59
7:24
#11276
10K
6.21 mi11:13:2145:077:1622:08
7:07
#9986
15K
9.32 mi11:35:231:07:097:1222:02
7:06
#9367
20K
12.43 mi11:57:491:29:357:1322:26
7:13
#9063
Half
13.11 mi12:02:341:34:207:124:45
6:58
#8936
25K
15.53 mi12:20:171:52:037:1317:43
7:18
#8787
30K
18.64 mi12:43:422:15:287:1623:25
7:32
#8567
20M
20.00 mi12:53:452:25:317:1710:03
7:24
#8342
21M
21.00 mi13:02:072:33:537:208:22
8:22
#8361
35K
21.75 mi13:07:262:39:127:195:19
7:06
#8228
23M
23.00 mi13:16:552:48:417:209:29
7:34
#8091
24M
24.00 mi13:24:112:55:577:207:16
7:16
#7961
40K
24.85 mi13:30:393:02:257:206:28
7:34
#7891
25.2M
25.20 mi13:33:353:05:217:212:56
8:30
#7876
Finish
26.22 mi13:41:163:13:027:227:41
7:32
#7913
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM55-59Seg. OverallSeg. MalesSeg. M55-59
5K3.11 mi3.11 mi11276882988298274(Top 29%)7108(Top 44%)7108(Top 431%)
10K6.21 mi3.10 mi9986+12908158+6718158+6718856(Top 31%)7512(Top 47%)7512(Top 456%)
15K9.32 mi3.11 mi9367+6197797+3617797+3618274(Top 29%)7108(Top 44%)7108(Top 431%)
20K12.43 mi3.11 mi9063+3047598+1997598+1998364(Top 29%)7085(Top 44%)7085(Top 430%)
Half13.11 mi0.68 mi8936+1277524+747524+747284(Top 26%)6426(Top 40%)6426(Top 390%)
25K15.53 mi2.42 mi8787+1497412+1127412+1128399(Top 30%)6993(Top 43%)6993(Top 424%)
30K18.64 mi3.11 mi8567+2207218+1947218+1948001(Top 28%)6587(Top 41%)6587(Top 400%)
20M20.00 mi1.36 mi8342+2257056+1627056+1626357(Top 22%)5439(Top 34%)5439(Top 330%)
21M21.00 mi1.00 mi8361-197027+297027+299602(Top 34%)7145(Top 44%)7145(Top 434%)
35K21.75 mi0.75 mi8228+1336929+986929+986039(Top 21%)5096(Top 32%)5096(Top 309%)
23M23.00 mi1.25 mi8091+1376792+1376792+1377064(Top 25%)5617(Top 35%)5617(Top 341%)
24M24.00 mi1.00 mi7961+1306677+1156677+1156222(Top 22%)5054(Top 31%)5054(Top 307%)
40K24.85 mi0.85 mi7891+706606+716606+717169(Top 25%)5530(Top 34%)5530(Top 336%)
25.2M25.20 mi0.35 mi7876+156582+246582+248762(Top 31%)6321(Top 39%)6321(Top 384%)
Finish26.22 mi1.02 mi7913-376574+86574+89443(Top 33%)6671(Top 41%)6671(Top 405%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 29%
×21story building
+97ft-345ft

Overall

8274

Males

7108

M55-59

7108

5K→10K

3.1 - 6.2 mi

Top 31%
×5story building
+79ft-138ft

Overall

8856

Males

7512

M55-59

7512

10K→15K

6.2 - 9.3 mi

Top 29%
×3story building
+67ft-78ft

Overall

8274

Males

7108

M55-59

7108

15K→20K

9.3 - 12.4 mi

Top 29%
×5story building
+106ft-86ft

Overall

8364

Males

7085

M55-59

7085

20K→Half

12.4 - 13.1 mi

Top 26%
×2story building
+19ft-37ft

Overall

7284

Males

6426

M55-59

6426

Half→25K

13.1 - 15.5 mi

Top 30%
×4story building
+66ft-88ft

Overall

8399

Males

6993

M55-59

6993

25K→30K

15.5 - 18.6 mi

Top 28%
×9story building
+181ft-148ft

Overall

8001

Males

6587

M55-59

6587

30K→20M

18.6 - 20.0 mi

Top 22%
×5story building
+64ft-50ft

Overall

6357

Males

5439

M55-59

5439

20M→21M

20.0 - 21.0 mi

Top 34%
×8story building
+106ft-24ft

Overall

9602

Males

7145

M55-59

7145

21M→35K

21.0 - 21.8 mi

Top 21%
×7story building
+17ft-86ft

Overall

6039

Males

5096

M55-59

5096

35K→23M

21.8 - 23.0 mi

Top 25%
×5story building
+23ft-63ft

Overall

7064

Males

5617

M55-59

5617

23M→24M

23.0 - 24.0 mi

Top 22%
×6story building
+12ft-82ft

Overall

6222

Males

5054

M55-59

5054

24M→40K

24.0 - 24.9 mi

Top 25%
×1story
+6ft-20ft

Overall

7169

Males

5530

M55-59

5530

40K→25.2M

24.9 - 25.2 mi

Top 31%
×1story
+13ft-16ft

Overall

8762

Males

6321

M55-59

6321

25.2M→Finish

25.2 - 26.2 mi

Top 33%
×2story building
+22ft-21ft

Overall

9443

Males

6671

M55-59

6671

Passing Analysis

Category:
Athletes Passed
3920*
Passed By
557
Net Change
+3363
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#11276
5K → 10K1300*10+1290#11276#9986
10K → 15K627*8+619#9986#9367
15K → 20K34541+304#9367#9063
20K → Half1292+127#9063#8936
Half → 25K22172+149#8936#8787
25K → 30K31696+220#8787#8567
30K → 20M2349+225#8567#8342
20M → 21M85104-19#8342#8361
21M → 35K1396+133#8361#8228
35K → 23M17437+137#8228#8091
23M → 24M14212+130#8091#7961
24M → 40K10131+70#7961#7891
40K → 25.2M4126+15#7891#7876
25.2M → Finish66103-37#7876#7913
TOTALS3920*557+3363

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

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