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BOSTON MARATHON 2025

Dingyang Song

Bib: 11008•F

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Top 44%
Masters (Masters Women)
#0 / 6759
Top 31%
Division (F40-44)
#0 / 1718
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
7:52/mi
24:26
↑ 97↓ 3451.5%
10K· 6.21 mi
7:56/mi
49:05
↑ 79↓ 1380.4%
15K· 9.32 mi
7:56/mi
1:13:45
↑ 67↓ 78
20K· 12.43 mi
8:37/mi
1:40:31
↑ 106↓ 860.1%
Half· 13.11 mi
8:24/mi
1:46:15
↑ 19↓ 370.5%
25K· 15.53 mi
8:12/mi
2:06:08
↑ 66↓ 880.2%
30K· 18.64 mi
8:35/mi
2:32:49
↑ 181↓ 1480.2%
20M
8:49/mi
2:44:48
↑ 64↓ 500.2%
21M
9:34/mi
2:54:22
↑ 106↓ 241.6%
35K· 21.75 mi
9:00/mi
3:01:06
↑ 17↓ 861.7%
23M
8:52/mi
3:12:12
↑ 23↓ 630.6%
24M
8:34/mi
3:20:46
↓ 821.3%
40K· 24.85 mi
8:47/mi
3:28:17
↓ 200.3%
25.2M
9:34/mi
3:31:35
↑ 13↓ 160.2%
Finish· 26.22 mi
8:37/mi
3:40:22
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:46:15
Pace8:06 /mi
2nd Half
Distance13.11 mi
Time1:54:07
Pace8:42 /mi
📊Positive Split: 7.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:54:5824:267:5224:26
7:52
-
10K
6.21 mi11:19:3749:057:5424:39
7:56
+0:04
15K
9.32 mi11:44:171:13:457:5524:40
7:56
0:00
20K
12.43 mi12:11:031:40:318:0526:46
8:37
+0:41
Half
13.11 mi12:16:471:46:158:065:44
8:24
-0:13
25K
15.53 mi12:36:402:06:088:0719:53
8:12
-0:12
30K
18.64 mi13:03:212:32:498:1226:41
8:35
+0:23
20M
20.00 mi13:15:202:44:488:1411:59
8:49
+0:14
21M
21.00 mi13:24:542:54:228:189:34
9:34
+0:45
35K
21.75 mi13:31:383:01:068:206:44
9:00
-0:34
23M
23.00 mi13:42:443:12:128:2111:06
8:52
-0:08
24M
24.00 mi13:51:183:20:468:228:34
8:34
-0:18
40K
24.85 mi13:58:493:28:178:237:31
8:47
+0:13
25.2M
25.20 mi14:02:073:31:358:243:18
9:34
+0:47
Finish
26.22 mi14:10:543:40:228:258:47
8:37
-0:57

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

7:52 /mi

Average Pace

8:25 /mi

Slowest Pace

9:34 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:33:38

42% of race

Time at Steady Pace

1:47:08

49% of race

Time at Slower Pace

19:36

9% of race

Average Pace: 8:24 /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 mi10:54:5824:267:5224:26
7:52
#15387
10K
6.21 mi11:19:3749:057:5424:39
7:56
#15672
15K
9.32 mi11:44:171:13:457:5524:40
7:56
#15614
20K
12.43 mi12:11:031:40:318:0526:46
8:37
#16594
Half
13.11 mi12:16:471:46:158:065:44
8:24
#16707
25K
15.53 mi12:36:402:06:088:0719:53
8:12
#16454
30K
18.64 mi13:03:212:32:498:1226:41
8:35
#16195
20M
20.00 mi13:15:202:44:488:1411:59
8:49
#16142
21M
21.00 mi13:24:542:54:228:189:34
9:34
#16102
35K
21.75 mi13:31:383:01:068:206:44
9:00
#16157
23M
23.00 mi13:42:443:12:128:2111:06
8:52
#16056
24M
24.00 mi13:51:183:20:468:228:34
8:34
#16001
40K
24.85 mi13:58:493:28:178:237:31
8:47
#15949
25.2M
25.20 mi14:02:073:31:358:243:18
9:34
#15922
Finish
26.22 mi14:10:543:40:228:258:47
8:37
#15966
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi153874772477215592(Top 55%)4909(Top 40%)4909(Top 286%)
10K6.21 mi3.10 mi15672-2854939-1674939-16715960(Top 56%)5102(Top 42%)5102(Top 297%)
15K9.32 mi3.11 mi15614+584905+344905+3415592(Top 55%)4909(Top 40%)4909(Top 286%)
20K12.43 mi3.11 mi16594-9805496-5915496-59118938(Top 67%)6875(Top 56%)6875(Top 400%)
Half13.11 mi0.68 mi16707-1135565-695565-6918618(Top 66%)6677(Top 55%)6677(Top 389%)
25K15.53 mi2.42 mi16454+2535436+1295436+12915341(Top 54%)4926(Top 40%)4926(Top 287%)
30K18.64 mi3.11 mi16195+2595335+1015335+10115325(Top 54%)5089(Top 42%)5089(Top 296%)
20M20.00 mi1.36 mi16142+535350-155350-1515777(Top 56%)5463(Top 45%)5463(Top 318%)
21M21.00 mi1.00 mi16102+405358-85358-816391(Top 58%)5921(Top 48%)5921(Top 345%)
35K21.75 mi0.75 mi16157-555415-575415-5718237(Top 64%)7029(Top 57%)7029(Top 409%)
23M23.00 mi1.25 mi16056+1015387+285387+2815500(Top 55%)5602(Top 46%)5602(Top 326%)
24M24.00 mi1.00 mi16001+555386+15386+114963(Top 53%)5358(Top 44%)5358(Top 312%)
40K24.85 mi0.85 mi15949+525375+115375+1115168(Top 53%)5612(Top 46%)5612(Top 327%)
25.2M25.20 mi0.35 mi15922+275377-25377-215001(Top 53%)5548(Top 45%)5548(Top 323%)
Finish26.22 mi1.02 mi15966-445413-365413-3616974(Top 60%)6542(Top 54%)6542(Top 381%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 55%
×21story building
+97ft-345ft

Overall

15592

Females

4909

F40-44

4909

5K→10K

3.1 - 6.2 mi

Top 56%
×5story building
+79ft-138ft

Overall

15960

Females

5102

F40-44

5102

10K→15K

6.2 - 9.3 mi

Top 55%
×3story building
+67ft-78ft

Overall

15592

Females

4909

F40-44

4909

15K→20K

9.3 - 12.4 mi

Top 67%
×5story building
+106ft-86ft

Overall

18938

Females

6875

F40-44

6875

20K→Half

12.4 - 13.1 mi

Top 66%
×2story building
+19ft-37ft

Overall

18618

Females

6677

F40-44

6677

Half→25K

13.1 - 15.5 mi

Top 54%
×4story building
+66ft-88ft

Overall

15341

Females

4926

F40-44

4926

25K→30K

15.5 - 18.6 mi

Top 54%
×9story building
+181ft-148ft

Overall

15325

Females

5089

F40-44

5089

30K→20M

18.6 - 20.0 mi

Top 56%
×5story building
+64ft-50ft

Overall

15777

Females

5463

F40-44

5463

20M→21M

20.0 - 21.0 mi

Top 58%
×8story building
+106ft-24ft

Overall

16391

Females

5921

F40-44

5921

21M→35K

21.0 - 21.8 mi

Top 64%
×7story building
+17ft-86ft

Overall

18237

Females

7029

F40-44

7029

35K→23M

21.8 - 23.0 mi

Top 55%
×5story building
+23ft-63ft

Overall

15500

Females

5602

F40-44

5602

23M→24M

23.0 - 24.0 mi

Top 53%
×6story building
+12ft-82ft

Overall

14963

Females

5358

F40-44

5358

24M→40K

24.0 - 24.9 mi

Top 53%
×1story
+6ft-20ft

Overall

15168

Females

5612

F40-44

5612

40K→25.2M

24.9 - 25.2 mi

Top 53%
×1story
+13ft-16ft

Overall

15001

Females

5548

F40-44

5548

25.2M→Finish

25.2 - 26.2 mi

Top 60%
×2story building
+22ft-21ft

Overall

16974

Females

6542

F40-44

6542

Passing Analysis

Category:
Athletes Passed
1896
Passed By
2475
Net Change
-579
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#15387
5K → 10K207492-285#15387#15672
10K → 15K234176+58#15672#15614
15K → 20K451025-980#15614#16594
20K → Half13126-113#16594#16707
Half → 25K28431+253#16707#16454
25K → 30K363104+259#16454#16195
30K → 20M14087+53#16195#16142
20M → 21M11878+40#16142#16102
21M → 35K49104-55#16102#16157
35K → 23M16059+101#16157#16056
23M → 24M9237+55#16056#16001
24M → 40K9240+52#16001#15949
40K → 25.2M5124+27#15949#15922
25.2M → Finish4892-44#15922#15966
TOTALS18962475-579
📊

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