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BOSTON MARATHON 2023

Sirianong Namwongprom

Bib: 29777•F

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Masters (Masters Women)
#0 / 6539
Division (F45-49)
#0 / 1817
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ 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
10:18/mi
32:01
↑ 97↓ 3451.5%
10K· 6.21 mi
10:20/mi
1:04:08
↑ 79↓ 1380.4%
15K· 9.32 mi
11:03/mi
1:38:28
↑ 67↓ 78
20K· 12.43 mi
12:59/mi
2:18:47
↑ 106↓ 860.1%
Half· 13.11 mi
12:16/mi
2:27:09
↑ 19↓ 370.5%
25K· 15.53 mi
13:50/mi
3:00:41
↑ 66↓ 880.2%
30K· 18.64 mi
13:40/mi
3:43:09
↑ 181↓ 1480.2%
20M
13:35/mi
4:01:37
↑ 64↓ 500.2%
21M
16:39/mi
4:18:16
↑ 106↓ 241.6%
35K· 21.75 mi
12:45/mi
4:27:48
↑ 17↓ 861.7%
23M
13:53/mi
4:45:11
↑ 23↓ 630.6%
24M
13:13/mi
4:58:24
↓ 821.3%
40K· 24.85 mi
14:37/mi
5:10:54
↓ 200.3%
25.2M
16:40/mi
5:16:39
↑ 13↓ 160.2%
Finish· 26.22 mi
13:01/mi
5:29:55
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:27:09
Pace11:13 /mi
2nd Half
Distance13.11 mi
Time3:02:46
Pace13:57 /mi
📊Positive Split: 24.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:49:2832:0110:1832:01
10:18
-
10K
6.21 mi12:21:351:04:0810:1932:07
10:20
+0:02
15K
9.32 mi12:55:551:38:2810:3434:20
11:03
+0:43
20K
12.43 mi13:36:142:18:4711:1040:19
12:59
+1:56
Half
13.11 mi13:44:362:27:0911:138:22
12:16
-0:43
25K
15.53 mi14:18:083:00:4111:3833:32
13:50
+1:34
30K
18.64 mi15:00:363:43:0911:5842:28
13:40
-0:10
20M
20.00 mi15:19:044:01:3712:0518:28
13:35
-0:05
21M
21.00 mi15:35:434:18:1612:1816:39
16:39
+3:04
35K
21.75 mi15:45:154:27:4812:199:32
12:45
-3:54
23M
23.00 mi16:02:384:45:1112:2417:23
13:53
+1:08
24M
24.00 mi16:15:514:58:2412:2613:13
13:13
-0:40
40K
24.85 mi16:28:215:10:5412:3112:30
14:37
+1:24
25.2M
25.20 mi16:34:065:16:3912:345:45
16:40
+2:03
Finish
26.22 mi16:47:225:29:5512:3613:16
13:01
-3:39

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

10:18 /mi

Average Pace

12:36 /mi

Slowest Pace

16:40 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:46:50

32% of race

Time at Steady Pace

3:08:11

57% of race

Time at Slower Pace

34:54

11% of race

Average Pace: 12:35 /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 mi11:49:2832:0110:1832:01
10:18
#24239
10K
6.21 mi12:21:351:04:0810:1932:07
10:20
#24320
15K
9.32 mi12:55:551:38:2810:3434:20
11:03
#24754
20K
12.43 mi13:36:142:18:4711:1040:19
12:59
#25442
Half
13.11 mi13:44:362:27:0911:138:22
12:16
#25483
25K
15.53 mi14:18:083:00:4111:3833:32
13:50
#25731
30K
18.64 mi15:00:363:43:0911:5842:28
13:40
#25768
20M
20.00 mi15:19:044:01:3712:0518:28
13:35
#25766
21M
21.00 mi15:35:434:18:1612:1816:39
16:39
#25829
35K
21.75 mi15:45:154:27:4812:199:32
12:45
#25826
23M
23.00 mi16:02:384:45:1112:2417:23
13:53
#25830
24M
24.00 mi16:15:514:58:2412:2613:13
13:13
#25826
40K
24.85 mi16:28:215:10:5412:3112:30
14:37
#25849
25.2M
25.20 mi16:34:065:16:3912:345:45
16:40
#25873
Finish
26.22 mi16:47:225:29:5512:3613:16
13:01
#25889
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi24239100081000825271(Top 95%)10615(Top 93%)10615(Top 584%)
10K6.21 mi3.10 mi24320-8110061-5310061-5324370(Top 92%)10101(Top 88%)10101(Top 556%)
15K9.32 mi3.11 mi24754-43410311-25010311-25025271(Top 95%)10615(Top 93%)10615(Top 584%)
20K12.43 mi3.11 mi25442-68810711-40010711-40026220(Top 98%)11185(Top 98%)11185(Top 616%)
Half13.11 mi0.68 mi25483-4110737-2610737-2626044(Top 98%)11084(Top 97%)11084(Top 610%)
25K15.53 mi2.42 mi25731-24810891-15410891-15426272(Top 99%)11229(Top 98%)11229(Top 618%)
30K18.64 mi3.11 mi25768-3710919-2810919-2825857(Top 97%)11029(Top 97%)11029(Top 607%)
20M20.00 mi1.36 mi25766+210925-610925-625600(Top 96%)10909(Top 96%)10909(Top 600%)
21M21.00 mi1.00 mi25829-6310960-3510960-3526380(Top 99%)11310(Top 99%)11310(Top 622%)
35K21.75 mi0.75 mi25826+310962-210962-225378(Top 95%)10853(Top 95%)10853(Top 597%)
23M23.00 mi1.25 mi25830-410971-910971-925755(Top 97%)11025(Top 97%)11025(Top 607%)
24M24.00 mi1.00 mi25826+410970+110970+125630(Top 96%)10993(Top 96%)10993(Top 605%)
40K24.85 mi0.85 mi25849-2310987-1710987-1726001(Top 98%)11172(Top 98%)11172(Top 615%)
25.2M25.20 mi0.35 mi25873-2410998-1110998-1126301(Top 99%)11303(Top 99%)11303(Top 622%)
Finish26.22 mi1.02 mi25889-1611007-911007-925985(Top 98%)11164(Top 98%)11164(Top 614%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 95%
×21story building
+97ft-345ft

Overall

25271

Females

10615

F45-49

10615

5K→10K

3.1 - 6.2 mi

Top 92%
×5story building
+79ft-138ft

Overall

24370

Females

10101

F45-49

10101

10K→15K

6.2 - 9.3 mi

Top 95%
×3story building
+67ft-78ft

Overall

25271

Females

10615

F45-49

10615

15K→20K

9.3 - 12.4 mi

Top 98%
×5story building
+106ft-86ft

Overall

26220

Females

11185

F45-49

11185

20K→Half

12.4 - 13.1 mi

Top 98%
×2story building
+19ft-37ft

Overall

26044

Females

11084

F45-49

11084

Half→25K

13.1 - 15.5 mi

Top 99%
×4story building
+66ft-88ft

Overall

26272

Females

11229

F45-49

11229

25K→30K

15.5 - 18.6 mi

Top 97%
×9story building
+181ft-148ft

Overall

25857

Females

11029

F45-49

11029

30K→20M

18.6 - 20.0 mi

Top 96%
×5story building
+64ft-50ft

Overall

25600

Females

10909

F45-49

10909

20M→21M

20.0 - 21.0 mi

Top 99%
×8story building
+106ft-24ft

Overall

26380

Females

11310

F45-49

11310

21M→35K

21.0 - 21.8 mi

Top 95%
×7story building
+17ft-86ft

Overall

25378

Females

10853

F45-49

10853

35K→23M

21.8 - 23.0 mi

Top 97%
×5story building
+23ft-63ft

Overall

25755

Females

11025

F45-49

11025

23M→24M

23.0 - 24.0 mi

Top 96%
×6story building
+12ft-82ft

Overall

25630

Females

10993

F45-49

10993

24M→40K

24.0 - 24.9 mi

Top 98%
×1story
+6ft-20ft

Overall

26001

Females

11172

F45-49

11172

40K→25.2M

24.9 - 25.2 mi

Top 99%
×1story
+13ft-16ft

Overall

26301

Females

11303

F45-49

11303

25.2M→Finish

25.2 - 26.2 mi

Top 98%
×2story building
+22ft-21ft

Overall

25985

Females

11164

F45-49

11164

Passing Analysis

Category:
Athletes Passed
343
Passed By
1993
Net Change
-1650
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#24239
5K → 10K157238-81#24239#24320
10K → 15K32466-434#24320#24754
15K → 20K3691-688#24754#25442
20K → Half243-41#25442#25483
Half → 25K5253-248#25483#25731
25K → 30K4986-37#25731#25768
30K → 20M2927+2#25768#25766
20M → 21M366-63#25766#25829
21M → 35K1310+3#25829#25826
35K → 23M1721-4#25826#25830
23M → 24M2016+4#25830#25826
24M → 40K629-23#25826#25849
40K → 25.2M125-24#25849#25873
25.2M → Finish622-16#25873#25889
TOTALS3431993-1650
📊

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