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BOSTON MARATHON 2025

Tina Chirgwin

Bib: 26277•F

MA

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Masters (Masters Women)
#0 / 6759
Division (F45-49)
#0 / 1813
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
12:05/mi
37:31
↑ 97↓ 3451.5%
10K· 6.21 mi
12:42/mi
1:16:57
↑ 79↓ 1380.4%
15K· 9.32 mi
13:34/mi
1:59:06
↑ 67↓ 78
20K· 12.43 mi
13:54/mi
2:42:18
↑ 106↓ 860.1%
Half· 13.11 mi
13:29/mi
2:51:30
↑ 19↓ 370.5%
25K· 15.53 mi
15:27/mi
3:28:58
↑ 66↓ 880.2%
30K· 18.64 mi
15:34/mi
4:17:19
↑ 181↓ 1480.2%
20M
15:03/mi
4:37:46
↑ 64↓ 500.2%
21M
15:21/mi
4:53:07
↑ 106↓ 241.6%
35K· 21.75 mi
14:29/mi
5:03:57
↑ 17↓ 861.7%
23M
14:04/mi
5:21:34
↑ 23↓ 630.6%
24M
13:52/mi
5:35:26
↓ 821.3%
40K· 24.85 mi
13:50/mi
5:47:16
↓ 200.3%
25.2M
15:45/mi
5:52:42
↑ 13↓ 160.2%
Finish· 26.22 mi
13:20/mi
6:06:17
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:51:30
Pace13:05 /mi
2nd Half
Distance13.11 mi
Time3:14:47
Pace14:52 /mi
📊Positive Split: 13.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:53:0837:3112:0537:31
12:05
-
10K
6.21 mi12:32:341:16:5712:2339:26
12:42
+0:37
15K
9.32 mi13:14:431:59:0612:4742:09
13:34
+0:52
20K
12.43 mi13:57:552:42:1813:0443:12
13:54
+0:20
Half
13.11 mi14:07:072:51:3013:059:12
13:29
-0:25
25K
15.53 mi14:44:353:28:5813:2737:28
15:27
+1:58
30K
18.64 mi15:32:564:17:1913:4848:21
15:34
+0:07
20M
20.00 mi15:53:234:37:4613:5320:27
15:03
-0:31
21M
21.00 mi16:08:444:53:0713:5715:21
15:21
+0:18
35K
21.75 mi16:19:345:03:5713:5910:50
14:29
-0:52
23M
23.00 mi16:37:115:21:3413:5917:37
14:04
-0:25
24M
24.00 mi16:51:035:35:2613:5913:52
13:52
-0:12
40K
24.85 mi17:02:535:47:1613:5811:50
13:50
-0:02
25.2M
25.20 mi17:08:195:52:4214:005:26
15:45
+1:55
Finish
26.22 mi17:21:546:06:1713:5913:35
13:20
-2:25

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

12:05 /mi

Average Pace

13:59 /mi

Slowest Pace

15:45 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:30:32

25% of race

Time at Steady Pace

2:17:52

38% of race

Time at Slower Pace

2:17:53

38% of race

Average Pace: 13:58 /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 mi11:53:0837:3112:0537:31
12:05
#28251
10K
6.21 mi12:32:341:16:5712:2339:26
12:42
#28259
15K
9.32 mi13:14:431:59:0612:4742:09
13:34
#28310
20K
12.43 mi13:57:552:42:1813:0443:12
13:54
#28307
Half
13.11 mi14:07:072:51:3013:059:12
13:29
#28307
25K
15.53 mi14:44:353:28:5813:2737:28
15:27
#28329
30K
18.64 mi15:32:564:17:1913:4848:21
15:34
#28331
20M
20.00 mi15:53:234:37:4613:5320:27
15:03
#28329
21M
21.00 mi16:08:444:53:0713:5715:21
15:21
#28324
35K
21.75 mi16:19:345:03:5713:5910:50
14:29
#28321
23M
23.00 mi16:37:115:21:3413:5917:37
14:04
#28315
24M
24.00 mi16:51:035:35:2613:5913:52
13:52
#28307
40K
24.85 mi17:02:535:47:1613:5811:50
13:50
#28298
25.2M
25.20 mi17:08:195:52:4214:005:26
15:45
#28300
Finish
26.22 mi17:21:546:06:1713:5913:35
13:20
#28289
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi28251121251212528318(Top 100%)12183(Top 100%)12183(Top 672%)
10K6.21 mi3.10 mi28259-812137-1212137-1228255(Top 99%)12141(Top 99%)12141(Top 670%)
15K9.32 mi3.11 mi28310-5112173-3612173-3628318(Top 100%)12183(Top 100%)12183(Top 672%)
20K12.43 mi3.11 mi28307+312171+212171+228214(Top 99%)12129(Top 99%)12129(Top 669%)
Half13.11 mi0.68 mi2830712172-112172-128168(Top 99%)12110(Top 99%)12110(Top 668%)
25K15.53 mi2.42 mi28329-2212188-1612188-1628301(Top 100%)12184(Top 100%)12184(Top 672%)
30K18.64 mi3.11 mi28331-212193-512193-528197(Top 99%)12141(Top 99%)12141(Top 670%)
20M20.00 mi1.36 mi28329+2121931219327889(Top 98%)12003(Top 98%)12003(Top 662%)
21M21.00 mi1.00 mi28324+512191+212191+227413(Top 97%)11781(Top 96%)11781(Top 650%)
35K21.75 mi0.75 mi28321+312189+212189+227908(Top 98%)12047(Top 99%)12047(Top 664%)
23M23.00 mi1.25 mi28315+612188+112188+127386(Top 96%)11798(Top 96%)11798(Top 651%)
24M24.00 mi1.00 mi28307+812185+312185+327566(Top 97%)11918(Top 97%)11918(Top 657%)
40K24.85 mi0.85 mi28298+912181+412181+427047(Top 95%)11669(Top 95%)11669(Top 644%)
25.2M25.20 mi0.35 mi28300-212182-112182-127585(Top 97%)11929(Top 98%)11929(Top 658%)
Finish26.22 mi1.02 mi28289+1112178+412178+427785(Top 98%)11996(Top 98%)11996(Top 662%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 100%
×21story building
+97ft-345ft

Overall

28318

Females

12183

F45-49

12183

5K→10K

3.1 - 6.2 mi

Top 99%
×5story building
+79ft-138ft

Overall

28255

Females

12141

F45-49

12141

10K→15K

6.2 - 9.3 mi

Top 100%
×3story building
+67ft-78ft

Overall

28318

Females

12183

F45-49

12183

15K→20K

9.3 - 12.4 mi

Top 99%
×5story building
+106ft-86ft

Overall

28214

Females

12129

F45-49

12129

20K→Half

12.4 - 13.1 mi

Top 99%
×2story building
+19ft-37ft

Overall

28168

Females

12110

F45-49

12110

Half→25K

13.1 - 15.5 mi

Top 100%
×4story building
+66ft-88ft

Overall

28301

Females

12184

F45-49

12184

25K→30K

15.5 - 18.6 mi

Top 99%
×9story building
+181ft-148ft

Overall

28197

Females

12141

F45-49

12141

30K→20M

18.6 - 20.0 mi

Top 98%
×5story building
+64ft-50ft

Overall

27889

Females

12003

F45-49

12003

20M→21M

20.0 - 21.0 mi

Top 97%
×8story building
+106ft-24ft

Overall

27413

Females

11781

F45-49

11781

21M→35K

21.0 - 21.8 mi

Top 98%
×7story building
+17ft-86ft

Overall

27908

Females

12047

F45-49

12047

35K→23M

21.8 - 23.0 mi

Top 96%
×5story building
+23ft-63ft

Overall

27386

Females

11798

F45-49

11798

23M→24M

23.0 - 24.0 mi

Top 97%
×6story building
+12ft-82ft

Overall

27566

Females

11918

F45-49

11918

24M→40K

24.0 - 24.9 mi

Top 95%
×1story
+6ft-20ft

Overall

27047

Females

11669

F45-49

11669

40K→25.2M

24.9 - 25.2 mi

Top 97%
×1story
+13ft-16ft

Overall

27585

Females

11929

F45-49

11929

25.2M→Finish

25.2 - 26.2 mi

Top 98%
×2story building
+22ft-21ft

Overall

27785

Females

11996

F45-49

11996

Passing Analysis

Category:
Athletes Passed
131
Passed By
169
Net Change
-38
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#28251
5K → 10K2735-8#28251#28259
10K → 15K657-51#28259#28310
15K → 20K1916+3#28310#28307
20K → Half330#28307#28307
Half → 25K527-22#28307#28329
25K → 30K1113-2#28329#28331
30K → 20M53+2#28331#28329
20M → 21M72+5#28329#28324
21M → 35K30+3#28324#28321
35K → 23M93+6#28321#28315
23M → 24M102+8#28315#28307
24M → 40K101+9#28307#28298
40K → 25.2M35-2#28298#28300
25.2M → Finish132+11#28300#28289
TOTALS131169-38
📊

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